Pub Date : 2017-10-01DOI: 10.1109/PIMRC.2017.8292613
Nesrine Cherif, I. Trigui, S. Affes
In this paper, we unify the performance analysis for the outage probability (OP) and the bit-error rate (ABER) of relay-assisted dual-hop free-space optics (FSO) transmission under heterodyne detection and intensity modulation/direct detection (IM/DD). The FSO link experiences the generalized Málaga-m distribution with pointing errors. under the assumption of fixed and variable gain relaying schemes, we derive the analytical closedform expressions for the performance metrics in terms of bivariate Fox-H function (FHF). Finally, we present some Monte-carlo simulation results to corroborate the new derived expressions.
{"title":"Dual-hop Málaga-M FSO systems with pointing errors","authors":"Nesrine Cherif, I. Trigui, S. Affes","doi":"10.1109/PIMRC.2017.8292613","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292613","url":null,"abstract":"In this paper, we unify the performance analysis for the outage probability (OP) and the bit-error rate (ABER) of relay-assisted dual-hop free-space optics (FSO) transmission under heterodyne detection and intensity modulation/direct detection (IM/DD). The FSO link experiences the generalized Málaga-m distribution with pointing errors. under the assumption of fixed and variable gain relaying schemes, we derive the analytical closedform expressions for the performance metrics in terms of bivariate Fox-H function (FHF). Finally, we present some Monte-carlo simulation results to corroborate the new derived expressions.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124428482","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 : 2017-10-01DOI: 10.1109/PIMRC.2017.8292784
Christopher Boyd, R. Vehkalahti, O. Tirkkonen
We consider Combinatorial Code Designs (CCD) for ensuring ultra-reliability in the random access channel. By constructing user-specific repetition patterns to be utilised over a synchronised uplink frame consisting of a number of access slots, we guarantee successive reception up to a given number of simultaneously active users. Employing advanced receivers capable of Successive Interference Cancellation (SIC) further improves reliability. As an example, we consider a system with access frames of 24 bundled slots, repetition factor 3, and reliability target 99.999%. When compared to slotted repetition ALOHA, SIC provides a 30% gain in the tolerated user activity; CCD a 30% gain; whereas CCD combined with SIC provides a gain of more than 700%. These gains come at the cost of a strict limit on the supported user population. In the given example, the system can support a total of 2024 users.
{"title":"Combinatorial code designs for ultra-reliable IoT random access","authors":"Christopher Boyd, R. Vehkalahti, O. Tirkkonen","doi":"10.1109/PIMRC.2017.8292784","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292784","url":null,"abstract":"We consider Combinatorial Code Designs (CCD) for ensuring ultra-reliability in the random access channel. By constructing user-specific repetition patterns to be utilised over a synchronised uplink frame consisting of a number of access slots, we guarantee successive reception up to a given number of simultaneously active users. Employing advanced receivers capable of Successive Interference Cancellation (SIC) further improves reliability. As an example, we consider a system with access frames of 24 bundled slots, repetition factor 3, and reliability target 99.999%. When compared to slotted repetition ALOHA, SIC provides a 30% gain in the tolerated user activity; CCD a 30% gain; whereas CCD combined with SIC provides a gain of more than 700%. These gains come at the cost of a strict limit on the supported user population. In the given example, the system can support a total of 2024 users.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126416348","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 : 2017-10-01DOI: 10.1109/PIMRC.2017.8292650
Gleb Dubosarskii, S. Primak, Xianbin Wang
This paper is devoted to the investigation of different properties of dynamic vehicular ad hoc network on a road. In our model each moving vehicle on the road communicates with several neighbouring cars. We derive important characteristics of such network including distributions of number of clusters, cluster size, biggest cluster size distribution and distribution of cars not being able to communicate with any other car in the network as well as probability of graph being fully connected. Understanding of clustering is an important issue in management of virtual cells organization, distributed data collection and processing. One of advantages of the considered model is that it can be used for arbitrary intervehicle distribution model.
{"title":"On the higher order statistics of car clustering in vehicle communications networks on a road","authors":"Gleb Dubosarskii, S. Primak, Xianbin Wang","doi":"10.1109/PIMRC.2017.8292650","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292650","url":null,"abstract":"This paper is devoted to the investigation of different properties of dynamic vehicular ad hoc network on a road. In our model each moving vehicle on the road communicates with several neighbouring cars. We derive important characteristics of such network including distributions of number of clusters, cluster size, biggest cluster size distribution and distribution of cars not being able to communicate with any other car in the network as well as probability of graph being fully connected. Understanding of clustering is an important issue in management of virtual cells organization, distributed data collection and processing. One of advantages of the considered model is that it can be used for arbitrary intervehicle distribution model.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125630883","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 : 2017-10-01DOI: 10.1109/PIMRC.2017.8292166
Mouna Hajir, F. Gagnon
With the exponential growth of demand in terms of traffic and data rates, one of the most promising potential features of the fifth generation (5G) of mobile network is the use of the millimeter-wave (mmWave) frequency bands. Although the available bandwidth in the mmWave frequency is significantly large, high frequencies pose several challenges in term of propagation loss, hence suitable models for these frequencies use are needed. Due to significant pathloss, the higher mmWave bands are better suited to the operation of short ranged small cells, while the lower frequency bands are appropriate for outdoors users. We propose in this paper, a spatial frequency reuse model for two-tier ultra-dense networks, where a dedicated band is allocated to inner and outer regions of macrocells and small-cells in order to properly exploit the advantages and limits of the mmWave frequencies. The performance of this scheme are evaluated both analytically in terms of coverage probability, and through system-simulation in terms of achieved throughput, and compared to traditional microwave systems and mmWave models with no reuse. We reach an average of 20% of coverage gain with more than 70% of the users having a throughput greater than 500 Mbps and nearly 40% greater than the target 1 Gbps.
{"title":"Spatial reuse model for mmWave frequencies in ultra dense small-cells networks","authors":"Mouna Hajir, F. Gagnon","doi":"10.1109/PIMRC.2017.8292166","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292166","url":null,"abstract":"With the exponential growth of demand in terms of traffic and data rates, one of the most promising potential features of the fifth generation (5G) of mobile network is the use of the millimeter-wave (mmWave) frequency bands. Although the available bandwidth in the mmWave frequency is significantly large, high frequencies pose several challenges in term of propagation loss, hence suitable models for these frequencies use are needed. Due to significant pathloss, the higher mmWave bands are better suited to the operation of short ranged small cells, while the lower frequency bands are appropriate for outdoors users. We propose in this paper, a spatial frequency reuse model for two-tier ultra-dense networks, where a dedicated band is allocated to inner and outer regions of macrocells and small-cells in order to properly exploit the advantages and limits of the mmWave frequencies. The performance of this scheme are evaluated both analytically in terms of coverage probability, and through system-simulation in terms of achieved throughput, and compared to traditional microwave systems and mmWave models with no reuse. We reach an average of 20% of coverage gain with more than 70% of the users having a throughput greater than 500 Mbps and nearly 40% greater than the target 1 Gbps.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125804784","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 : 2017-10-01DOI: 10.1109/PIMRC.2017.8292579
Ali Bayat, S. Aïssa
We analyze a wireless power charging network to find the best users' admission policy and power allocation by the wireless power charger (WPC). The objective of the WPC is to maximize its utility while keeping the users' satisfaction up to their required level. This optimum strategy depends on the users' bids and on the WPC's knowledge about the users' requests and the network parameters. Here, the network is modeled by an M/M/N/N queue. The competition of users is modeled using game theory, and the game model is embedded in a continuous-time Markov process model. If a user is admitted by the WPC, the latter broadcasts its new budgeted allocation, after which the users compete for the power in a non-cooperative game by broadcasting their bids. Knowing other bids, users renew and then broadcast their own bids until convergence to the Nash Equilibrium strategy. When a new user places an admission request, the WPC — desiring to maximize its profit with regard to the current users' utilities — decides to whether admit or reject the request by solving a constrained non-linear optimization problem. The performance of the proposed admission and power charging policy is analyzed.
{"title":"Admission control and power allocation in wireless power charging networks","authors":"Ali Bayat, S. Aïssa","doi":"10.1109/PIMRC.2017.8292579","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292579","url":null,"abstract":"We analyze a wireless power charging network to find the best users' admission policy and power allocation by the wireless power charger (WPC). The objective of the WPC is to maximize its utility while keeping the users' satisfaction up to their required level. This optimum strategy depends on the users' bids and on the WPC's knowledge about the users' requests and the network parameters. Here, the network is modeled by an M/M/N/N queue. The competition of users is modeled using game theory, and the game model is embedded in a continuous-time Markov process model. If a user is admitted by the WPC, the latter broadcasts its new budgeted allocation, after which the users compete for the power in a non-cooperative game by broadcasting their bids. Knowing other bids, users renew and then broadcast their own bids until convergence to the Nash Equilibrium strategy. When a new user places an admission request, the WPC — desiring to maximize its profit with regard to the current users' utilities — decides to whether admit or reject the request by solving a constrained non-linear optimization problem. The performance of the proposed admission and power charging policy is analyzed.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121935456","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 : 2017-10-01DOI: 10.1109/PIMRC.2017.8292220
Sandeep Bhat, A. Chockalingam
Load modulated arrays (LMAs) are gaining research attention as an attractive transmitter architecture for multiple-input multiple-output (MIMO) systems. A key advantage of LMAs is that they eliminate the need for RF chains at the transmitter (consisting of DACs, mixers, filters) and use only one central power amplifier for any number of antenna elements. The algorithmic complexity of the construction of high spectral efficiency load modulation (LM) signal sets for large arrays that attempts to maximize the angular separation between load impedance vectors is high. In this paper, we propose high spectral efficiency LM signal sets for large arrays. In particular, we propose random phase modulation (RPM) for LMAs, where randomly chosen phase vectors constitute the LM signal set. The LM signal sets generated using RPM are shown to achieve performance close to within a fraction of a dB compared to the performance achieved by algorithmically constructed LM signal sets, particularly when the signal set size and signal dimension are large. Further, we propose the use of random phase precoding (RPP) and precoder index modulation (PIM) in LMAs, which is shown to achieve a performance improvement of about 7–8 dB at 104 bit error rate.
{"title":"Random phase modulation in load modulated arrays","authors":"Sandeep Bhat, A. Chockalingam","doi":"10.1109/PIMRC.2017.8292220","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292220","url":null,"abstract":"Load modulated arrays (LMAs) are gaining research attention as an attractive transmitter architecture for multiple-input multiple-output (MIMO) systems. A key advantage of LMAs is that they eliminate the need for RF chains at the transmitter (consisting of DACs, mixers, filters) and use only one central power amplifier for any number of antenna elements. The algorithmic complexity of the construction of high spectral efficiency load modulation (LM) signal sets for large arrays that attempts to maximize the angular separation between load impedance vectors is high. In this paper, we propose high spectral efficiency LM signal sets for large arrays. In particular, we propose random phase modulation (RPM) for LMAs, where randomly chosen phase vectors constitute the LM signal set. The LM signal sets generated using RPM are shown to achieve performance close to within a fraction of a dB compared to the performance achieved by algorithmically constructed LM signal sets, particularly when the signal set size and signal dimension are large. Further, we propose the use of random phase precoding (RPP) and precoder index modulation (PIM) in LMAs, which is shown to achieve a performance improvement of about 7–8 dB at 104 bit error rate.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115836359","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 : 2017-10-01DOI: 10.1109/PIMRC.2017.8292169
Rui Wang, Faezeh Hajiaghajani, S. Biswas
This paper develops an incentive based cooperative content caching framework for Social Wireless Networks (SWNETs) in which content demands are hierarchically heterogeneous. The heterogeneous request model incorporates user preference for different categories/genres, and contents under each category, both following power law distributions at local as well as global levels. Based upon such request generation model, an optimal incentive based Heterogeneous Split Caching algorithm is proposed which can minimize electronic content provisioning cost using cooperative caching policies. Detailed simulation experiments for functional validation and performance evaluation with respect to traditional caching strategies are then performed under various protocol and network parameters. The baseline HSC mechanism is also tested against a special benchmark situation that provides a steady state performance bound, which can occur after an infinite request horizon.
{"title":"Incentive based cooperative content caching in Social Wireless Networks","authors":"Rui Wang, Faezeh Hajiaghajani, S. Biswas","doi":"10.1109/PIMRC.2017.8292169","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292169","url":null,"abstract":"This paper develops an incentive based cooperative content caching framework for Social Wireless Networks (SWNETs) in which content demands are hierarchically heterogeneous. The heterogeneous request model incorporates user preference for different categories/genres, and contents under each category, both following power law distributions at local as well as global levels. Based upon such request generation model, an optimal incentive based Heterogeneous Split Caching algorithm is proposed which can minimize electronic content provisioning cost using cooperative caching policies. Detailed simulation experiments for functional validation and performance evaluation with respect to traditional caching strategies are then performed under various protocol and network parameters. The baseline HSC mechanism is also tested against a special benchmark situation that provides a steady state performance bound, which can occur after an infinite request horizon.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132470334","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 : 2017-10-01DOI: 10.1109/PIMRC.2017.8292666
Q. Nguyen, P. Johnson, Trung-Thanh Nguyen, M. Randles
Bluetooth Low Energy (BLE) technology and BLE-based devices such as iBeacons have become popular recently. In this work, an optimized indoor positioning approach using BLE for detecting a smart device's location in an indoor environment is proposed. The first stage of the proposed approach is a calibration stage for initialization. The Received Signal Strength Indicator (RSSI) is collected and pre-processed for a stable outcome, in the second stage. Then the distance is estimated by using the processed RSSI and calibrated factors in the third stage. The final stage is the position estimation using the outputs from the previous steps. The positioning technique, which is an improved Least Square estimation is evaluated against the other well-known techniques such as, Trilateration-Centroid, classic Least Square Estimation in estimating the user's location in the 2D plane. Experimental results show that our proposed approach has promising results by achieving an accuracy of positioning within 0.2 to 0.35m.
{"title":"Optimized indoor positioning for static mode smart devices using BLE","authors":"Q. Nguyen, P. Johnson, Trung-Thanh Nguyen, M. Randles","doi":"10.1109/PIMRC.2017.8292666","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292666","url":null,"abstract":"Bluetooth Low Energy (BLE) technology and BLE-based devices such as iBeacons have become popular recently. In this work, an optimized indoor positioning approach using BLE for detecting a smart device's location in an indoor environment is proposed. The first stage of the proposed approach is a calibration stage for initialization. The Received Signal Strength Indicator (RSSI) is collected and pre-processed for a stable outcome, in the second stage. Then the distance is estimated by using the processed RSSI and calibrated factors in the third stage. The final stage is the position estimation using the outputs from the previous steps. The positioning technique, which is an improved Least Square estimation is evaluated against the other well-known techniques such as, Trilateration-Centroid, classic Least Square Estimation in estimating the user's location in the 2D plane. Experimental results show that our proposed approach has promising results by achieving an accuracy of positioning within 0.2 to 0.35m.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134145422","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 : 2017-10-01DOI: 10.1109/PIMRC.2017.8292408
A. Gouissem, L. Samara, R. Hamila, N. Al-Dhahir, S. Foufou
In this paper, the problems of relay selection and distributed beamforming are investigated for bi-directional dual-hop amplify-and-forward frequency-division duplex cooperative wireless networks. When using individual per-relay maximum transmission power constraint, it has been proven that the relay selection and beamforming optimization problem becomes NP hard and requires exhaustive search to find the optimal solution. Therefore, we propose a computationally affordable suboptimal multiple relay selection and beamforming optimization scheme based on the ℓ1 norm squared relaxation. The proposed scheme performs the selection for the two transmission directions, simultaneously, while aiming at maximizing the aggregated SNR of the two communicating nodes. Furthermore, by exploiting the previous solutions to accelerate the algorithm's convergence, our proposed algorithm converges to a suboptimal solution compared to the exhaustive search technique with much less complexity.
{"title":"Relay selection in FDD amplify-and-forward cooperative networks","authors":"A. Gouissem, L. Samara, R. Hamila, N. Al-Dhahir, S. Foufou","doi":"10.1109/PIMRC.2017.8292408","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292408","url":null,"abstract":"In this paper, the problems of relay selection and distributed beamforming are investigated for bi-directional dual-hop amplify-and-forward frequency-division duplex cooperative wireless networks. When using individual per-relay maximum transmission power constraint, it has been proven that the relay selection and beamforming optimization problem becomes NP hard and requires exhaustive search to find the optimal solution. Therefore, we propose a computationally affordable suboptimal multiple relay selection and beamforming optimization scheme based on the ℓ1 norm squared relaxation. The proposed scheme performs the selection for the two transmission directions, simultaneously, while aiming at maximizing the aggregated SNR of the two communicating nodes. Furthermore, by exploiting the previous solutions to accelerate the algorithm's convergence, our proposed algorithm converges to a suboptimal solution compared to the exhaustive search technique with much less complexity.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134230474","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 : 2017-10-01DOI: 10.1109/PIMRC.2017.8292327
Rachel Wakim, J. Weitzen
This paper describes an autonomous robotic system for characterizing and mapping indoor wireless coverage. Most current-generation systems for measuring wireless coverage require human testers to walk around a prescribed path and manually record their position. This time-consuming process limits measurement resolution and its accuracy is subject to human error. As indoor coverage solutions become more widespread, techniques for efficiently measuring coverage quality are growing in importance. The autonomous robotic system described automatically explores an area and accurately determines its position relative to the building map. Handset logging equipment onboard the robot determines physical layer data rates and signal quality as measured by metrics such as SNR, RSRP, and CQI. Following the robotic test, postprocessing software overlays the test metrics on the building map to create significantly higher resolution coverage maps than have been previously possible. This system allows for verification of wireless coverage against service level agreements, and for repetitive testing of in-development indoor solutions.
{"title":"An autonomous system for high-resolution mapping of indoor wireless coverage","authors":"Rachel Wakim, J. Weitzen","doi":"10.1109/PIMRC.2017.8292327","DOIUrl":"https://doi.org/10.1109/PIMRC.2017.8292327","url":null,"abstract":"This paper describes an autonomous robotic system for characterizing and mapping indoor wireless coverage. Most current-generation systems for measuring wireless coverage require human testers to walk around a prescribed path and manually record their position. This time-consuming process limits measurement resolution and its accuracy is subject to human error. As indoor coverage solutions become more widespread, techniques for efficiently measuring coverage quality are growing in importance. The autonomous robotic system described automatically explores an area and accurately determines its position relative to the building map. Handset logging equipment onboard the robot determines physical layer data rates and signal quality as measured by metrics such as SNR, RSRP, and CQI. Following the robotic test, postprocessing software overlays the test metrics on the building map to create significantly higher resolution coverage maps than have been previously possible. This system allows for verification of wireless coverage against service level agreements, and for repetitive testing of in-development indoor solutions.","PeriodicalId":397107,"journal":{"name":"2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134443734","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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