Pub Date : 2019-11-01DOI: 10.1109/MILCOM47813.2019.9020784
Madhuprana Goswami, Vidhi Rana, H. Kwon, K. Pham, J. Lyke
A geostationary earth orbit satellite requires high transmitting power (e.g., 20 dBW=100 watts) because the waveform traveling distance can be more than 36,000 km. Thus, it is necessary to operate close to the saturation point in an analog high-power amplifier (HPA), thereby causing undesirable intermodulation and nonlinear impairments when multiple-accesses subband signals of different subcarriers are simultaneously transmitted. This paper considers a future digital HPA instead of an analog HPA. This is because today a digital channelizer can convert the sample stream of multiple-access subband user signals into a single sample stream before an HPA with no overlapping in samples, thereby reducing the intermodulation products significantly. In this paper, we study for the first time a digital channelizer for multiple-access user subband signals combined with a nonlinear HPA and a simple predistorter (PD). Both phase and amplitude predistortion can compensate almost perfectly for the distortion due to the HPA's nonlinear characteristics. Simulation results verify an almost negligible bit error rate (BER) degradation. Therefore, a future satellite communication system using the proposed digital channelizer, PD, and digital HPA can have high-frequency utilization efficiency, multicast, and broadcast capabilities, and gain control for each subchannel.
{"title":"Satellite Digital Channelizer with Predistorted High-Power Amplifier","authors":"Madhuprana Goswami, Vidhi Rana, H. Kwon, K. Pham, J. Lyke","doi":"10.1109/MILCOM47813.2019.9020784","DOIUrl":"https://doi.org/10.1109/MILCOM47813.2019.9020784","url":null,"abstract":"A geostationary earth orbit satellite requires high transmitting power (e.g., 20 dBW=100 watts) because the waveform traveling distance can be more than 36,000 km. Thus, it is necessary to operate close to the saturation point in an analog high-power amplifier (HPA), thereby causing undesirable intermodulation and nonlinear impairments when multiple-accesses subband signals of different subcarriers are simultaneously transmitted. This paper considers a future digital HPA instead of an analog HPA. This is because today a digital channelizer can convert the sample stream of multiple-access subband user signals into a single sample stream before an HPA with no overlapping in samples, thereby reducing the intermodulation products significantly. In this paper, we study for the first time a digital channelizer for multiple-access user subband signals combined with a nonlinear HPA and a simple predistorter (PD). Both phase and amplitude predistortion can compensate almost perfectly for the distortion due to the HPA's nonlinear characteristics. Simulation results verify an almost negligible bit error rate (BER) degradation. Therefore, a future satellite communication system using the proposed digital channelizer, PD, and digital HPA can have high-frequency utilization efficiency, multicast, and broadcast capabilities, and gain control for each subchannel.","PeriodicalId":371812,"journal":{"name":"MILCOM 2019 - 2019 IEEE Military Communications Conference (MILCOM)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129441560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/MILCOM47813.2019.9020714
Colleen T. Rock, Nathaniel B. Soule, Benjamin Toll, Emily H. Do, James R. Milligan, M. Paulini
Software systems typically evolve independently from one another. Integration opportunities and benefits only become apparent when new users or organizations adopt the system into the composition of a new system of systems solution, typically when new use cases are identified, or tangential needs arise. This leads to systems designed to use different data formats, network protocols, interaction patterns, and other disparities unable to natively communicate with each other. When integration does occur, it is often with custom one-off solutions that bridge the networks and systems in question. While integration may be plausible and even successful, these solutions tend to be costly, slow to produce, and tightly coupled to the specific systems or, even worse, specific versions of systems that they are connecting. In this paper we examine ROGER, a composable and dynamic gateway building framework that helps to address these integration costs and complexities. The ROGER framework abstracts away the common infrastructure needed in any system-bridging middleware, fosters reuse and capability sharing through a composition-driven plug-in framework, and allows for rapid gateway construction through a policy-centric composition structure. ROGER seeks to shorten integration gateway development time, reduce the amount of code creation required to build and deploy new gateways, as well as enable in-mission adaptation and extension of gateway capabilities as mission parameters and system awareness dictates. At the heart of this dynamism and adaptability in ROGER is the Information Flow Policy (IFP), a domain specific language that describes processing pipelines over incoming data streams. This paper presents the design of the compositional model and of the IFP that describes and enables the composition. We use a set of ROGER gateways as a dataset, along with a representative case study, in initial evaluations that show promising results regarding ROGER's ability to reduce development time and cost as well as minimize required skill sets.
{"title":"Efficiently Composing Validated Systems Integration Gateways for Dynamic, Diverse Data","authors":"Colleen T. Rock, Nathaniel B. Soule, Benjamin Toll, Emily H. Do, James R. Milligan, M. Paulini","doi":"10.1109/MILCOM47813.2019.9020714","DOIUrl":"https://doi.org/10.1109/MILCOM47813.2019.9020714","url":null,"abstract":"Software systems typically evolve independently from one another. Integration opportunities and benefits only become apparent when new users or organizations adopt the system into the composition of a new system of systems solution, typically when new use cases are identified, or tangential needs arise. This leads to systems designed to use different data formats, network protocols, interaction patterns, and other disparities unable to natively communicate with each other. When integration does occur, it is often with custom one-off solutions that bridge the networks and systems in question. While integration may be plausible and even successful, these solutions tend to be costly, slow to produce, and tightly coupled to the specific systems or, even worse, specific versions of systems that they are connecting. In this paper we examine ROGER, a composable and dynamic gateway building framework that helps to address these integration costs and complexities. The ROGER framework abstracts away the common infrastructure needed in any system-bridging middleware, fosters reuse and capability sharing through a composition-driven plug-in framework, and allows for rapid gateway construction through a policy-centric composition structure. ROGER seeks to shorten integration gateway development time, reduce the amount of code creation required to build and deploy new gateways, as well as enable in-mission adaptation and extension of gateway capabilities as mission parameters and system awareness dictates. At the heart of this dynamism and adaptability in ROGER is the Information Flow Policy (IFP), a domain specific language that describes processing pipelines over incoming data streams. This paper presents the design of the compositional model and of the IFP that describes and enables the composition. We use a set of ROGER gateways as a dataset, along with a representative case study, in initial evaluations that show promising results regarding ROGER's ability to reduce development time and cost as well as minimize required skill sets.","PeriodicalId":371812,"journal":{"name":"MILCOM 2019 - 2019 IEEE Military Communications Conference (MILCOM)","volume":"14 4-5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120892043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/MILCOM47813.2019.9020756
Asanka Kekirigoda, Kin-Ping Hui, Qingqing Cheng, Zhipeng Lin, J. A. Zhang, Diep N. Nguyen, Xiaojing Huang
Survivability of wireless communications segments in tactical military networks is an enormous challenge in the present and future defence forces, especially as these networks usually operate in radio frequency (RF) contested environments. Therefore, it is necessary to develop techniques to provide effective and efficient communication in RF contested environments. Massive multiple-input-multiple-output (MIMO) techniques use a large number of antennas enabling higher degrees of freedom that can improve communications network's survivability and efficiency compared to conventional MIMO or single antenna systems. This paper presents a novel massive MIMO communications system which enhances the throughput of the network, reduces the bit-error-rate and mitigates the interference from high powered jammers. Simulation results in contested environments verify the effectiveness of this system.
{"title":"Massive MIMO for Tactical Ad-hoc Networks in RF Contested Environments","authors":"Asanka Kekirigoda, Kin-Ping Hui, Qingqing Cheng, Zhipeng Lin, J. A. Zhang, Diep N. Nguyen, Xiaojing Huang","doi":"10.1109/MILCOM47813.2019.9020756","DOIUrl":"https://doi.org/10.1109/MILCOM47813.2019.9020756","url":null,"abstract":"Survivability of wireless communications segments in tactical military networks is an enormous challenge in the present and future defence forces, especially as these networks usually operate in radio frequency (RF) contested environments. Therefore, it is necessary to develop techniques to provide effective and efficient communication in RF contested environments. Massive multiple-input-multiple-output (MIMO) techniques use a large number of antennas enabling higher degrees of freedom that can improve communications network's survivability and efficiency compared to conventional MIMO or single antenna systems. This paper presents a novel massive MIMO communications system which enhances the throughput of the network, reduces the bit-error-rate and mitigates the interference from high powered jammers. Simulation results in contested environments verify the effectiveness of this system.","PeriodicalId":371812,"journal":{"name":"MILCOM 2019 - 2019 IEEE Military Communications Conference (MILCOM)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122507376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/MILCOM47813.2019.9020843
Lorenzo Campioni, M. Tortonesi, Bastiaan Wissingh, Niranjan Suri, M. Hauge, L. Landmark
Tactical edge networks represent a uniquely challenging environment from the communications perspective, due to their limited bandwidth and high node mobility. Several middleware communication solutions have been proposed to address those issues, adopting an evolutionary design approach that requires facing quite a few complications to provide applications with a suited network programming model while building on top of the TCP/IP stack. Information Centric Networking (ICN), instead, represents a revolutionary, clean slate approach that aims at replacing the entire TCP/IP stack with a new communication paradigm, better suited to cope with fluctuating channel conditions and network disruptions. This paper, stemmed from research conducted within NATO IST-161 RTG, investigates the effectiveness of Named Data Networking (NDN), the de facto standard implementation of ICN, in the context of tactical edge networks and its potential for adoption. We evaluated an NDN-based Blue Force Tracking (BFT) dissemination application within the Anglova scenario emulation environment, and found that NDN obtained better-than-expected results in terms of delivery ratio and latency, at the expense of a relatively high bandwidth consumption.
{"title":"Experimental Evaluation of Named Data Networking (NDN) in Tactical Environments","authors":"Lorenzo Campioni, M. Tortonesi, Bastiaan Wissingh, Niranjan Suri, M. Hauge, L. Landmark","doi":"10.1109/MILCOM47813.2019.9020843","DOIUrl":"https://doi.org/10.1109/MILCOM47813.2019.9020843","url":null,"abstract":"Tactical edge networks represent a uniquely challenging environment from the communications perspective, due to their limited bandwidth and high node mobility. Several middleware communication solutions have been proposed to address those issues, adopting an evolutionary design approach that requires facing quite a few complications to provide applications with a suited network programming model while building on top of the TCP/IP stack. Information Centric Networking (ICN), instead, represents a revolutionary, clean slate approach that aims at replacing the entire TCP/IP stack with a new communication paradigm, better suited to cope with fluctuating channel conditions and network disruptions. This paper, stemmed from research conducted within NATO IST-161 RTG, investigates the effectiveness of Named Data Networking (NDN), the de facto standard implementation of ICN, in the context of tactical edge networks and its potential for adoption. We evaluated an NDN-based Blue Force Tracking (BFT) dissemination application within the Anglova scenario emulation environment, and found that NDN obtained better-than-expected results in terms of delivery ratio and latency, at the expense of a relatively high bandwidth consumption.","PeriodicalId":371812,"journal":{"name":"MILCOM 2019 - 2019 IEEE Military Communications Conference (MILCOM)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122719160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/MILCOM47813.2019.9021015
Cody W Tinker, Kevin Millar, A. Kaminsky, M. Kurdziel, M. Lukowiak, S. Radziszowski
A Cross Domain Solution (CDS) is a means of secure information exchange that provides the ability to access or transfer digital data between varying security domains. Most existing CDS methods focus on risk management policies that rely on using protected or trusted parties to process the information in order to solve this problem. A CDS that is able to function in the presence of untrusted parties is a challenge. We apply the concepts of homomorphic encryption (HE) to explore a new solution to the CDS problem. We built a practical software case study application using the Yet Another Somewhat Homomorphic Encryption Scheme (YASHE) around the specific challenge of evaluating the gateway bypass condition on encrypted data. We assess the feasibility of such an application through performance and memory profiling in order to find a parameter selection that ensures proper homomorphic evaluation. The correctness of the application was assured for 64-, 72-, 96-, and 128-bit security parameter selections of YASHE resulting in high latency performance. The computing time required by our proof-of-concept implementation may be high but this approach allows the manual process employed in current systems to be eliminated.
{"title":"Exploring the Application of Homomorphic Encryption to a Cross Domain Solution","authors":"Cody W Tinker, Kevin Millar, A. Kaminsky, M. Kurdziel, M. Lukowiak, S. Radziszowski","doi":"10.1109/MILCOM47813.2019.9021015","DOIUrl":"https://doi.org/10.1109/MILCOM47813.2019.9021015","url":null,"abstract":"A Cross Domain Solution (CDS) is a means of secure information exchange that provides the ability to access or transfer digital data between varying security domains. Most existing CDS methods focus on risk management policies that rely on using protected or trusted parties to process the information in order to solve this problem. A CDS that is able to function in the presence of untrusted parties is a challenge. We apply the concepts of homomorphic encryption (HE) to explore a new solution to the CDS problem. We built a practical software case study application using the Yet Another Somewhat Homomorphic Encryption Scheme (YASHE) around the specific challenge of evaluating the gateway bypass condition on encrypted data. We assess the feasibility of such an application through performance and memory profiling in order to find a parameter selection that ensures proper homomorphic evaluation. The correctness of the application was assured for 64-, 72-, 96-, and 128-bit security parameter selections of YASHE resulting in high latency performance. The computing time required by our proof-of-concept implementation may be high but this approach allows the manual process employed in current systems to be eliminated.","PeriodicalId":371812,"journal":{"name":"MILCOM 2019 - 2019 IEEE Military Communications Conference (MILCOM)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115356203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/MILCOM47813.2019.9020764
Qi Zhao, Adam J. Brown, J. H. Kim, M. Gerla
Software-Defined Network (SDN) based battlefield network consists of network providers, such as Satellite Communication (SATCOM) systems and Unmanned Aerial Vehicles (UAVs), and users as battlefield entities. Battlefield entities, commonly equipped with multiple terminals, can obtain multiple communication links for multiple applications and system robustness. To better utilize the network resources and improve the communication performance for such network, we developed an integrated Software-Defined Network emulation testbed to support various tactical scenarios. In our continuing research, our proposed framework couples SDN and Multi-Path TCP (MPTCP) with a smart agent for real-time traffic optimization based on the Flow Deviation Method (FDM). In this paper, we enhance the testbed with greater control over traffic generation, ampler visualization options, dynamic link management to simulate network events, and support of larger topologies. Iterative experimentation, regression testing, and comparative analysis attest to the functionality and scalability of our integrated testbed, in support of further research and study on battlefield network and other tactical network environments.
{"title":"An Integrated Software-Defined Battlefield Network Testbed for Tactical Scenario Emulation","authors":"Qi Zhao, Adam J. Brown, J. H. Kim, M. Gerla","doi":"10.1109/MILCOM47813.2019.9020764","DOIUrl":"https://doi.org/10.1109/MILCOM47813.2019.9020764","url":null,"abstract":"Software-Defined Network (SDN) based battlefield network consists of network providers, such as Satellite Communication (SATCOM) systems and Unmanned Aerial Vehicles (UAVs), and users as battlefield entities. Battlefield entities, commonly equipped with multiple terminals, can obtain multiple communication links for multiple applications and system robustness. To better utilize the network resources and improve the communication performance for such network, we developed an integrated Software-Defined Network emulation testbed to support various tactical scenarios. In our continuing research, our proposed framework couples SDN and Multi-Path TCP (MPTCP) with a smart agent for real-time traffic optimization based on the Flow Deviation Method (FDM). In this paper, we enhance the testbed with greater control over traffic generation, ampler visualization options, dynamic link management to simulate network events, and support of larger topologies. Iterative experimentation, regression testing, and comparative analysis attest to the functionality and scalability of our integrated testbed, in support of further research and study on battlefield network and other tactical network environments.","PeriodicalId":371812,"journal":{"name":"MILCOM 2019 - 2019 IEEE Military Communications Conference (MILCOM)","volume":"312 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131708663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/MILCOM47813.2019.9020975
F. D. Kronewitter, Sumner Lee, Kenneth. Oliphant, Dell. Kronewitter, Kenneth. Oliphant
This conference note describes a Deep Reinforcement Learning architecture specifically designed to improve wireless network performance over a heterogeneous airborne wireless network consisting of multiple waveforms, antennas, platforms, link protocols, frequencies, spatial transmission, and codes. The cooperative optimization of this high dimensional space is a difficult problem which obviously has a highly correlated characterization where human network operators cannot possibly capture these correlations. Model-free Reinforcement Learning techniques represent a potential solution to our problem. Specifically, we use Deep Q-Learning Networks (DQN) to improve networking performance. We have developed a high-fidelity network simulation tool we call Tactical Airborne Network Simulator (TANS) which we use to train our neural network before deploying to the field where the asset is deployed to some mission which is hopefully somewhat similar to the scenarios used for training. By utilizing the model developed under the TANS training scenarios for the target mission scenario our learning technique gets a head start, rather than using a truly model-free approach. Our technique is codified in the ML community as “Deep Transfer Learning” [4] where terms and metrics have been examined. This paper represents an initial investigation into both the decision support agent architecture and the ML technique. Upcoming research will be described below including our vision for an expanded agent architecture as well as ideas for improved ML techniques which ultimately will result in better wireless network performance. Here we demonstrate a minor throughput performance improvement of 4% using a proof of concept agent over the use of a standard unassisted network. We improved the throughput from 309kbps to 324 kbps.
{"title":"A Cognitive ML Agent for Airborne Networking","authors":"F. D. Kronewitter, Sumner Lee, Kenneth. Oliphant, Dell. Kronewitter, Kenneth. Oliphant","doi":"10.1109/MILCOM47813.2019.9020975","DOIUrl":"https://doi.org/10.1109/MILCOM47813.2019.9020975","url":null,"abstract":"This conference note describes a Deep Reinforcement Learning architecture specifically designed to improve wireless network performance over a heterogeneous airborne wireless network consisting of multiple waveforms, antennas, platforms, link protocols, frequencies, spatial transmission, and codes. The cooperative optimization of this high dimensional space is a difficult problem which obviously has a highly correlated characterization where human network operators cannot possibly capture these correlations. Model-free Reinforcement Learning techniques represent a potential solution to our problem. Specifically, we use Deep Q-Learning Networks (DQN) to improve networking performance. We have developed a high-fidelity network simulation tool we call Tactical Airborne Network Simulator (TANS) which we use to train our neural network before deploying to the field where the asset is deployed to some mission which is hopefully somewhat similar to the scenarios used for training. By utilizing the model developed under the TANS training scenarios for the target mission scenario our learning technique gets a head start, rather than using a truly model-free approach. Our technique is codified in the ML community as “Deep Transfer Learning” [4] where terms and metrics have been examined. This paper represents an initial investigation into both the decision support agent architecture and the ML technique. Upcoming research will be described below including our vision for an expanded agent architecture as well as ideas for improved ML techniques which ultimately will result in better wireless network performance. Here we demonstrate a minor throughput performance improvement of 4% using a proof of concept agent over the use of a standard unassisted network. We improved the throughput from 309kbps to 324 kbps.","PeriodicalId":371812,"journal":{"name":"MILCOM 2019 - 2019 IEEE Military Communications Conference (MILCOM)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121613521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/MILCOM47813.2019.9020787
Marcelo Camilo, D. Moura, R. Salles
Tactical wireless networks have different requirements and characteristics. Among these requirements, we can highlight physical layer security. An efficient way to increase the secrecy in wireless systems is to degrade the decoding capability of the eavesdroppers by introducing controlled interference or artificial noise. However, in tactical networks, there are situations in which the radio can not interfere, e.g. under severe power supply restrictions or if the enemy can detect radio position if it interferes. Moreover, there are also typical situations in which the radio does not need to interfere and therefore can save energy, e.g. transmission of low cruciality messages or radio usage in enemy-free areas. In this paper, we propose a Combined Interference and Communication strategy as defense against message interception in Cognitive Radio Military Networks. This strategy is grounded on interfering only under specific Cognitive Radio Military Networks requirements and characteristics. Numerical experiments show that we achieve a great energy saving in respect to [3] and [4] in several scenarios, reducing the receiver detection factor.
{"title":"Combined Interference and Communications Strategy as a Defense Mechanism in Cognitive Radio Military Networks","authors":"Marcelo Camilo, D. Moura, R. Salles","doi":"10.1109/MILCOM47813.2019.9020787","DOIUrl":"https://doi.org/10.1109/MILCOM47813.2019.9020787","url":null,"abstract":"Tactical wireless networks have different requirements and characteristics. Among these requirements, we can highlight physical layer security. An efficient way to increase the secrecy in wireless systems is to degrade the decoding capability of the eavesdroppers by introducing controlled interference or artificial noise. However, in tactical networks, there are situations in which the radio can not interfere, e.g. under severe power supply restrictions or if the enemy can detect radio position if it interferes. Moreover, there are also typical situations in which the radio does not need to interfere and therefore can save energy, e.g. transmission of low cruciality messages or radio usage in enemy-free areas. In this paper, we propose a Combined Interference and Communication strategy as defense against message interception in Cognitive Radio Military Networks. This strategy is grounded on interfering only under specific Cognitive Radio Military Networks requirements and characteristics. Numerical experiments show that we achieve a great energy saving in respect to [3] and [4] in several scenarios, reducing the receiver detection factor.","PeriodicalId":371812,"journal":{"name":"MILCOM 2019 - 2019 IEEE Military Communications Conference (MILCOM)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114328455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/MILCOM47813.2019.9021023
L. Gonzalez, J. Rippon
The Wideband Global SATCOM system (WGS) satellite has the unique means to set sub-channel gain for a specific link or bandwidth segment. This capability allows for a wide range of data rates for a specific uplink signal-to-noise ratio (SNR)up. However, arbitrarily selecting a data rate for a given (SNR)up can utilize satellite power inefficiently. This paper develops a method to determine the practical upper bound of data rate to (SNR)up, quantify the impact to satellite power when exceeding this upper bound, and determine the channel gain as a function of (SNR)up, data rate, intermodulation (IM) noise, and overall transponder drive level.
{"title":"On A Method to Evaluate Satellite Link Performance to Optimize Power","authors":"L. Gonzalez, J. Rippon","doi":"10.1109/MILCOM47813.2019.9021023","DOIUrl":"https://doi.org/10.1109/MILCOM47813.2019.9021023","url":null,"abstract":"The Wideband Global SATCOM system (WGS) satellite has the unique means to set sub-channel gain for a specific link or bandwidth segment. This capability allows for a wide range of data rates for a specific uplink signal-to-noise ratio (SNR)up. However, arbitrarily selecting a data rate for a given (SNR)up can utilize satellite power inefficiently. This paper develops a method to determine the practical upper bound of data rate to (SNR)up, quantify the impact to satellite power when exceeding this upper bound, and determine the channel gain as a function of (SNR)up, data rate, intermodulation (IM) noise, and overall transponder drive level.","PeriodicalId":371812,"journal":{"name":"MILCOM 2019 - 2019 IEEE Military Communications Conference (MILCOM)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124012479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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