Pub Date : 2013-06-04DOI: 10.1109/WoWMoM.2013.6583480
B. Lichtblau, J. Redlich
Network-Wide Broadcasts (NWBs) are a fundamental operation for Wireless Mesh Networks (WMNs), which are required by routing and for distributing information to all nodes in the network. Many optimizations for NWBs exist which aim to counter the broadcast storm problem by reducing redundant transmission. However removing the redundancy can also hurt reliability in lossy networks like WMNs. We therefore look at the other side. What happens if we increase redundancy to improve the reliability by using retransmissions and acknowledgements, which are said to amplify the broadcast storm? In this paper, a model for calculating forwarder sets locally based on measured link qualities is developed together with an algorithm for reliable NWBs. We evaluate our approach empirically in different simulation and testbed scenarios and compare it with protocols from the literature. The results show that redundancy is needed for achieving a high reliability and should not be abandoned. Furthermore, the impact of different parameters on our approach is evaluated.
{"title":"Link quality based forwarder selection strategies for reliable Network-Wide Broadcasts","authors":"B. Lichtblau, J. Redlich","doi":"10.1109/WoWMoM.2013.6583480","DOIUrl":"https://doi.org/10.1109/WoWMoM.2013.6583480","url":null,"abstract":"Network-Wide Broadcasts (NWBs) are a fundamental operation for Wireless Mesh Networks (WMNs), which are required by routing and for distributing information to all nodes in the network. Many optimizations for NWBs exist which aim to counter the broadcast storm problem by reducing redundant transmission. However removing the redundancy can also hurt reliability in lossy networks like WMNs. We therefore look at the other side. What happens if we increase redundancy to improve the reliability by using retransmissions and acknowledgements, which are said to amplify the broadcast storm? In this paper, a model for calculating forwarder sets locally based on measured link qualities is developed together with an algorithm for reliable NWBs. We evaluate our approach empirically in different simulation and testbed scenarios and compare it with protocols from the literature. The results show that redundancy is needed for achieving a high reliability and should not be abandoned. Furthermore, the impact of different parameters on our approach is evaluated.","PeriodicalId":158378,"journal":{"name":"2013 IEEE 14th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127515609","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 : 2013-06-04DOI: 10.1109/WoWMoM.2013.6583376
Ajay Thampi, S. Armour, Z. Fan, D. Kaleshi
In this paper, the problem of location classification in OFDMA-based FFR systems is considered for two FFR schemes, namely Strict FFR (FFR-A) and Soft Frequency Reuse (FFR-B). The FFR systems considered in the literature are mostly studied with static resource partitioning where a greater portion of the sub-carrier resources are reserved for users in the cell centre and a smaller portion for users near the edge. Once the resources are statically partitioned, they can then be allocated dynamically. In order to ensure proper resource allocation, the base station has to classify the location of the user as either cell-centre or cell-edge. A common practice is to use a one-dimensional threshold such as SINR, which is assumed to be a good indicator of distance. In this paper, the impact of misclassifying the user location on the overall system performance is studied. It is shown that in an urban environment with shadowing, the one-dimensional threshold approach gets the location classification right only 67% of the time and when compared to an ideal system based on accurate location, the overall cell throughput drops by 38% for FFR-A and 14% for FFR-B. Similarly, service rate drops of 24% and 28% are also observed for FFR-A and FFR-B respectively. A better technique based on a combination of two measurements, namely received power and SINR, is proposed where the higherdimensional threshold is determined through Logistic Regression. This new approach is shown to have a classification accuracy of more than 80%. As a result, the system performance is shown to be much better than the one-dimensional threshold approach and comparable to that based on accurate location.
{"title":"A logistic regression approach to location classification in OFDMA-based FFR systems","authors":"Ajay Thampi, S. Armour, Z. Fan, D. Kaleshi","doi":"10.1109/WoWMoM.2013.6583376","DOIUrl":"https://doi.org/10.1109/WoWMoM.2013.6583376","url":null,"abstract":"In this paper, the problem of location classification in OFDMA-based FFR systems is considered for two FFR schemes, namely Strict FFR (FFR-A) and Soft Frequency Reuse (FFR-B). The FFR systems considered in the literature are mostly studied with static resource partitioning where a greater portion of the sub-carrier resources are reserved for users in the cell centre and a smaller portion for users near the edge. Once the resources are statically partitioned, they can then be allocated dynamically. In order to ensure proper resource allocation, the base station has to classify the location of the user as either cell-centre or cell-edge. A common practice is to use a one-dimensional threshold such as SINR, which is assumed to be a good indicator of distance. In this paper, the impact of misclassifying the user location on the overall system performance is studied. It is shown that in an urban environment with shadowing, the one-dimensional threshold approach gets the location classification right only 67% of the time and when compared to an ideal system based on accurate location, the overall cell throughput drops by 38% for FFR-A and 14% for FFR-B. Similarly, service rate drops of 24% and 28% are also observed for FFR-A and FFR-B respectively. A better technique based on a combination of two measurements, namely received power and SINR, is proposed where the higherdimensional threshold is determined through Logistic Regression. This new approach is shown to have a classification accuracy of more than 80%. As a result, the system performance is shown to be much better than the one-dimensional threshold approach and comparable to that based on accurate location.","PeriodicalId":158378,"journal":{"name":"2013 IEEE 14th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"17 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128570526","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 : 2013-06-04DOI: 10.1109/WoWMoM.2013.6583471
Joe H. Novak, S. Kasera, Neal Patwari
Configuration errors are the most significant cause of failure in networks. Little research has been devoted to preventing network configuration errors using device fingerprints. We demonstrate how they can be used to prevent information from being incorrectly routed in an IEEE 802.15.4 beacon-enabled wireless sensor network with multiple coordinators. To determine if they are appropriate for this application, we investigate the number of unique fingerprints that clock skew and radio frequency characteristics provide.
{"title":"Preventing wireless network configuration errors in patient monitoring using device fingerprints","authors":"Joe H. Novak, S. Kasera, Neal Patwari","doi":"10.1109/WoWMoM.2013.6583471","DOIUrl":"https://doi.org/10.1109/WoWMoM.2013.6583471","url":null,"abstract":"Configuration errors are the most significant cause of failure in networks. Little research has been devoted to preventing network configuration errors using device fingerprints. We demonstrate how they can be used to prevent information from being incorrectly routed in an IEEE 802.15.4 beacon-enabled wireless sensor network with multiple coordinators. To determine if they are appropriate for this application, we investigate the number of unique fingerprints that clock skew and radio frequency characteristics provide.","PeriodicalId":158378,"journal":{"name":"2013 IEEE 14th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128607075","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 : 2013-06-04DOI: 10.1109/WoWMoM.2013.6583442
Radu-Ioan Ciobanu, C. Dobre, V. Cristea
Opportunistic networks are mobile networks that rely on the store-carry-and-forward paradigm, using contacts between nodes to opportunistically transfer data. For this reason, traditional routing mechanisms are no longer suitable. To increase the probability of successfull message delivery, we propose SPRINT, an opportunistic routing algorithm that introduces an additional routing criterion: online social information about nodes. Furthermore, previous results show that, for particular environments, contacts between devices in opportunistic networks are highly predictable. When users follow rare events-based mobility patterns, we show that human mobility can be approximated as a Poisson distribution. Based on this result, we add an additional prediction component into our routing algorithm. Our solution delivers better results compared to traditional social-based routing approaches, for different real-world and synthetic mobility scenarios.
{"title":"SPRINT: Social prediction-based opportunistic routing","authors":"Radu-Ioan Ciobanu, C. Dobre, V. Cristea","doi":"10.1109/WoWMoM.2013.6583442","DOIUrl":"https://doi.org/10.1109/WoWMoM.2013.6583442","url":null,"abstract":"Opportunistic networks are mobile networks that rely on the store-carry-and-forward paradigm, using contacts between nodes to opportunistically transfer data. For this reason, traditional routing mechanisms are no longer suitable. To increase the probability of successfull message delivery, we propose SPRINT, an opportunistic routing algorithm that introduces an additional routing criterion: online social information about nodes. Furthermore, previous results show that, for particular environments, contacts between devices in opportunistic networks are highly predictable. When users follow rare events-based mobility patterns, we show that human mobility can be approximated as a Poisson distribution. Based on this result, we add an additional prediction component into our routing algorithm. Our solution delivers better results compared to traditional social-based routing approaches, for different real-world and synthetic mobility scenarios.","PeriodicalId":158378,"journal":{"name":"2013 IEEE 14th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126344415","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 : 2013-06-04DOI: 10.1109/WoWMoM.2013.6583440
L. Lambrinos, Constantinos Djouvas, C. Chrysostomou
The availability of off-the-shelf equipment that facilitates long range wireless connectivity can prove to be useful in maritime communications. By establishing terrestrial wireless links, vessels may exchange data between them or with shore-based stations avoiding the use of costly satellite connectivity. On the other hand, vessel mobility and large distances between its nodes make a wireless maritime network hard to manage; frequent disconnections are expected to be the norm in this primarily low node density environment. As such, maritime communications appear as an ideal environment for delay tolerant networking. To this extent, we use actual vessel mobility data to evaluate some existing delay tolerant networking routing algorithms and identify where they fall short from the perspective of our particular domain. It appears that a hybrid approach in the form of a new routing algorithm that addresses the particular characteristics of a maritime network can prove beneficial.
{"title":"Applying delay tolerant networking routing algorithms in maritime communications","authors":"L. Lambrinos, Constantinos Djouvas, C. Chrysostomou","doi":"10.1109/WoWMoM.2013.6583440","DOIUrl":"https://doi.org/10.1109/WoWMoM.2013.6583440","url":null,"abstract":"The availability of off-the-shelf equipment that facilitates long range wireless connectivity can prove to be useful in maritime communications. By establishing terrestrial wireless links, vessels may exchange data between them or with shore-based stations avoiding the use of costly satellite connectivity. On the other hand, vessel mobility and large distances between its nodes make a wireless maritime network hard to manage; frequent disconnections are expected to be the norm in this primarily low node density environment. As such, maritime communications appear as an ideal environment for delay tolerant networking. To this extent, we use actual vessel mobility data to evaluate some existing delay tolerant networking routing algorithms and identify where they fall short from the perspective of our particular domain. It appears that a hybrid approach in the form of a new routing algorithm that addresses the particular characteristics of a maritime network can prove beneficial.","PeriodicalId":158378,"journal":{"name":"2013 IEEE 14th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128237976","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 : 2013-06-04DOI: 10.1109/WoWMoM.2013.6583416
Javier Barrachina, Manuel Fogué, Piedad Garrido, F. Martinez, Juan-Carlos Cano, C. Calafate, P. Manzoni
Vehicle density is one of the main metrics used for assessing the road traffic conditions. In this paper, we present a solution to estimate the density of vehicles that has been specially designed for Vehicular Networks. Our proposal allows Intelligent Transportation Systems to continuously estimate the vehicular density by accounting for the number of beacons received per Road Side Unit, as well as the roadmap topology. Simulation results indicate that our approach accurately estimates the vehicular density, and therefore automatic traffic controlling systems may use it to predict traffic jams and introduce countermeasures.
{"title":"Assessing vehicular density estimation using vehicle-to-infrastructure communications","authors":"Javier Barrachina, Manuel Fogué, Piedad Garrido, F. Martinez, Juan-Carlos Cano, C. Calafate, P. Manzoni","doi":"10.1109/WoWMoM.2013.6583416","DOIUrl":"https://doi.org/10.1109/WoWMoM.2013.6583416","url":null,"abstract":"Vehicle density is one of the main metrics used for assessing the road traffic conditions. In this paper, we present a solution to estimate the density of vehicles that has been specially designed for Vehicular Networks. Our proposal allows Intelligent Transportation Systems to continuously estimate the vehicular density by accounting for the number of beacons received per Road Side Unit, as well as the roadmap topology. Simulation results indicate that our approach accurately estimates the vehicular density, and therefore automatic traffic controlling systems may use it to predict traffic jams and introduce countermeasures.","PeriodicalId":158378,"journal":{"name":"2013 IEEE 14th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130485363","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 : 2013-06-04DOI: 10.1109/WoWMoM.2013.6583428
Maneesha Sharma
The availability of Channel State Information (CSI) at the transmitter in Multi User -Multiple Input Multiple Output (MU-MIMO) has been a popular research topic in recent years. The CSI makes it possible to adapt transmissions to current channel conditions, which is crucial for achieving reliable communication with high data rates in multi antenna systems. Basically there are two methods that allow the transmitter to obtain CSI from the receiver. This paper highlights both of these mechanisms and presents the basis of a novel feedback mechanism that efficiently provides the transmitter with minimum CSI to allow knowledge of a rapidly changing channel at the transmitter end of a MU-MIMO system. Preliminary simulation results show that channel capacity in a 4 × 4 MIMO system increases by up to 20% with the availability of CSI at the transmitter.
{"title":"Novel adaptive Channel State Information feedback for multiuser MIMO in wireless broadband communications","authors":"Maneesha Sharma","doi":"10.1109/WoWMoM.2013.6583428","DOIUrl":"https://doi.org/10.1109/WoWMoM.2013.6583428","url":null,"abstract":"The availability of Channel State Information (CSI) at the transmitter in Multi User -Multiple Input Multiple Output (MU-MIMO) has been a popular research topic in recent years. The CSI makes it possible to adapt transmissions to current channel conditions, which is crucial for achieving reliable communication with high data rates in multi antenna systems. Basically there are two methods that allow the transmitter to obtain CSI from the receiver. This paper highlights both of these mechanisms and presents the basis of a novel feedback mechanism that efficiently provides the transmitter with minimum CSI to allow knowledge of a rapidly changing channel at the transmitter end of a MU-MIMO system. Preliminary simulation results show that channel capacity in a 4 × 4 MIMO system increases by up to 20% with the availability of CSI at the transmitter.","PeriodicalId":158378,"journal":{"name":"2013 IEEE 14th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"53 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114042094","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 : 2013-06-04DOI: 10.1109/WoWMoM.2013.6583460
Alexandros Palaios, Janne Riihijärvi, P. Mähönen, P. V. Wesemael, M. Desmet, A. Dejonghe
We present results from the comparison of measurements between dedicated embedded spectrum sensing chip targeting low-cost and low-power applications and a high-end spectrum analyzer. We use different signal types, including actual spectrum usage measured simultaneously with the two devices. We analyze the typical problems such devices suffer from. Finally we also study how to estimate the spectrum sensing results once the device type is taken into account.
{"title":"Performance evaluation of single-chip spectrum sensing platform for portable spectrum measurements","authors":"Alexandros Palaios, Janne Riihijärvi, P. Mähönen, P. V. Wesemael, M. Desmet, A. Dejonghe","doi":"10.1109/WoWMoM.2013.6583460","DOIUrl":"https://doi.org/10.1109/WoWMoM.2013.6583460","url":null,"abstract":"We present results from the comparison of measurements between dedicated embedded spectrum sensing chip targeting low-cost and low-power applications and a high-end spectrum analyzer. We use different signal types, including actual spectrum usage measured simultaneously with the two devices. We analyze the typical problems such devices suffer from. Finally we also study how to estimate the spectrum sensing results once the device type is taken into account.","PeriodicalId":158378,"journal":{"name":"2013 IEEE 14th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124389654","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 : 2013-06-04DOI: 10.1109/wowmom.2013.6583420
C. Brandolese, W. Fornaciari, L. Rucco
This paper proposes and studies an hibernation technique and optimal hibernation policies aimed at minimizing the power consumption, while allowing stateful processing and the adoption of more powerful nodes. To this purpose the paper models the energy trade-off for hibernating the system rather than putting it in a memory-retention sleep mode between two consecutive bursts of processing. Thanks to a simplified notion of system state, the paper formally determines the optimal conditions for deciding whether to hibernate or not the system during idle periods. Hibernation policies have been implemented as a module of the operating system and results demonstrate energy savings up to 50% compared to trivial hibernation approaches. Moreover, the hibernation policy proved to be robust and stable with respect to changes of the application parameters.
{"title":"Optimal hibernation policies for energy efficient stateful operation in high-end wireless sensor nodes","authors":"C. Brandolese, W. Fornaciari, L. Rucco","doi":"10.1109/wowmom.2013.6583420","DOIUrl":"https://doi.org/10.1109/wowmom.2013.6583420","url":null,"abstract":"This paper proposes and studies an hibernation technique and optimal hibernation policies aimed at minimizing the power consumption, while allowing stateful processing and the adoption of more powerful nodes. To this purpose the paper models the energy trade-off for hibernating the system rather than putting it in a memory-retention sleep mode between two consecutive bursts of processing. Thanks to a simplified notion of system state, the paper formally determines the optimal conditions for deciding whether to hibernate or not the system during idle periods. Hibernation policies have been implemented as a module of the operating system and results demonstrate energy savings up to 50% compared to trivial hibernation approaches. Moreover, the hibernation policy proved to be robust and stable with respect to changes of the application parameters.","PeriodicalId":158378,"journal":{"name":"2013 IEEE 14th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116007360","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 : 2013-06-04DOI: 10.1109/WoWMoM.2013.6583479
Fawaz S. Bokhari, G. Záruba
In this paper, we address the problem of channel assignment considering partially overlapping channels (POCs) for interference avoidance in 802.11-based wireless mesh networks. A novel interference model is proposed which provides a systematic approach of measuring the interference caused by links operating on POCs by taking into account both the adjacent channel interference and the corresponding physical distance between mesh nodes. Based on this model, we design a centralized and a distributed interference-aware channel assignment algorithm called i-POCA which enables the use of smart ants for assigning orthogonal and non-orthogonal channels to radios in order to minimize total network interference. We evaluate our algorithms through extensive simulations and demonstrate that our proposed algorithms improve network throughput by efficient utilization of the available spectrum.
{"title":"i-POCA: Interference-aware partially overlapping channel assignment in 802.11-based meshes","authors":"Fawaz S. Bokhari, G. Záruba","doi":"10.1109/WoWMoM.2013.6583479","DOIUrl":"https://doi.org/10.1109/WoWMoM.2013.6583479","url":null,"abstract":"In this paper, we address the problem of channel assignment considering partially overlapping channels (POCs) for interference avoidance in 802.11-based wireless mesh networks. A novel interference model is proposed which provides a systematic approach of measuring the interference caused by links operating on POCs by taking into account both the adjacent channel interference and the corresponding physical distance between mesh nodes. Based on this model, we design a centralized and a distributed interference-aware channel assignment algorithm called i-POCA which enables the use of smart ants for assigning orthogonal and non-orthogonal channels to radios in order to minimize total network interference. We evaluate our algorithms through extensive simulations and demonstrate that our proposed algorithms improve network throughput by efficient utilization of the available spectrum.","PeriodicalId":158378,"journal":{"name":"2013 IEEE 14th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"81 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116345613","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：