Laurent Gallo, Francesco Negro, I. Ghauri, D. Slock
{"title":"Weighted sum rate maximization in the underlay cognitive MISO Interference Channel","authors":"Laurent Gallo, Francesco Negro, I. Ghauri, D. Slock","doi":"10.1109/PIMRC.2011.6140045","DOIUrl":"https://doi.org/10.1109/PIMRC.2011.6140045","url":null,"abstract":"In this paper we address the problem of Weighted Sum Rate (WSR) maximization for a K-user Multiple-Input Single-Output (MISO) cognitive Interference Channel (IFC) with linear transmit beamforming (BF) vectors in an underlay cognitive radio setting. We consider a set of L single-antenna Primary receivers to which the cognitive system can causes a limited amount of interference. We thus propose an iterative algorithm to determine the BF vectors for the secondary transmission. The optimization of the Lagrange multipliers involved in the optimization problem is based on the subgradient method. The expression of the BF vector can be interpreted as dual Uplink (UL) MMSE receiver that takes into account the interference caused by a fictitious link between the primary user and secondary base station. Finally Deterministic Annealing is applied to make the convergence of the algorithm easier.","PeriodicalId":262660,"journal":{"name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"22 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132934635","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}
{"title":"Analysis of deficit round robin scheduling for future aeronautical data link","authors":"S. Ayaz, F. Hoffmann, R. German, F. Dressler","doi":"10.1109/PIMRC.2011.6139820","DOIUrl":"https://doi.org/10.1109/PIMRC.2011.6139820","url":null,"abstract":"The aviation community is currently working on the standardization of data communication systems for the future air traffic management. In this context, the International Civil Aviation Organization (ICAO) has initiated a work on standardization of an IPv6-based aeronautical telecommunications network and on future radio access technologies, respectively. In this paper, we integrate L-Band Digital Aeronautical Communications System Option 1 (L-DACS 1), which is one candidate for future radio access technologies, with realistic IPv6-based network layer functionality and analyze Deficit Round Robin (DRR) with fragmentation algorithm for the forward and return link in L-DACS 1. Our analysis mainly covers two application domains: file transfer and real-time services. We show that DRR with fragmentation scheduler provides good performance results in terms of throughput, delay, and bandwidth fairness.","PeriodicalId":262660,"journal":{"name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130509505","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}
{"title":"NEMO route optimization with strong authentication for aeronautical communications","authors":"C. Bauer","doi":"10.1109/PIMRC.2011.6140074","DOIUrl":"https://doi.org/10.1109/PIMRC.2011.6140074","url":null,"abstract":"The introduction of IPv6 in the area of air traffic control communications is slowly advancing. The Network Mobility (NEMO) protocol can support the mobility of an airborne mobile router (MR) across different air-ground access technologies that are used during different phases of flight. Similar to Mobile IP, NEMO relies on forwarding all traffic via a home agent. No standardized route optimization (RO) protocol for solving this triangular routing problem is available as of now though. The already existing Correspondent Router (CR) protocol addresses this issue, but we will show that it suffers from security deficiencies. Hence, it is not suitable for the aeronautical environment. We therefore propose an authentication method for the CR protocol that provides a higher level of security. In addition, this method also allows a MR to establish and maintain a route optimized path to the CR in case the home agent should not be reachable. Furthermore, our method provides a better handover performance compared to the original protocol and other related work. Results from a Linux-based test-bed evaluation show this improvement. We also show that the signaling overhead for the proposed protocol has been reduced when used over a certain time period.","PeriodicalId":262660,"journal":{"name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130333213","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}
D. Dessales, A. Poussard, R. Vauzelle, N. Richard, F. Gaudairek, C. Martinsons
{"title":"Transmission power adaptation according to the message length for Wireless Sensor Networks","authors":"D. Dessales, A. Poussard, R. Vauzelle, N. Richard, F. Gaudairek, C. Martinsons","doi":"10.1109/PIMRC.2011.6140005","DOIUrl":"https://doi.org/10.1109/PIMRC.2011.6140005","url":null,"abstract":"The energy efficiency of a wireless sensor depends of three criteria: the transmission power (transmission range), the radio links quality (BER) and finally the message length. In this paper, we propose to reduce the overall consumption of a sensor by adapting the transmission power according to the last two criteria. The originality of our approach is to improve an energy model by the use of a realistic propagation model and a realistic BER estimation. Thus, from this complete model we show the propagation channel influence on the adjustment of the transmission power. The consequences on the energy consumption are illustrated in terms of lifetime on a forwarding sensor. Simulation results demonstrate clearly that significant gains on the lifetime of a sensor are obtained by adjusting the transmission power in function of the frame length.","PeriodicalId":262660,"journal":{"name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"39 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120850298","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}
{"title":"A performance evaluation of 60 GHz MIMO systems for IEEE 802.11ad WPANs","authors":"Xiaoyi Zhu, A. Doufexi, T. Koçak","doi":"10.1109/PIMRC.2011.6140109","DOIUrl":"https://doi.org/10.1109/PIMRC.2011.6140109","url":null,"abstract":"The IEEE 802.11ad task group has published its first draft to cope with the characteristics in 60 GHz millimeter-wave (mmWave) wireless communications. In this paper, three different 2×2 multiple-input multiple-output (MIMO) techniques are considered to enhance the performance of 60 GHz wireless personal networks (WPANs). Packet Error Rate (PER) and link throughput performance are simulated under different channel conditions. In addition, the system throughput over operation range is presented in the paper. Results show that significant enhancements in both coverage and capacity can be achieved by employing space-time block codes (STBC), spatial multiplexing (SM) and three different configurations of beamforming.","PeriodicalId":262660,"journal":{"name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130843876","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}
Victoria Sgardoni, David Halls, Syed Mohsin Matloob Bokhari, D. Bull, A. Nix
{"title":"Mobile WiMAX video quality and transmission efficiency","authors":"Victoria Sgardoni, David Halls, Syed Mohsin Matloob Bokhari, D. Bull, A. Nix","doi":"10.1109/PIMRC.2011.6139662","DOIUrl":"https://doi.org/10.1109/PIMRC.2011.6139662","url":null,"abstract":"This paper explores rules and defines cross layer parameters that enhance the received video quality per unit bandwidth while observing strict video QoS for unicast video transmission over mobile WiMAX. Channel capacity and goodput are estimated using a detailed MAC/PHY simulator. The simulator supports link adaptation of the PHY layer Modulation and Coding Scheme (MCS) alongside MAC layer Automatic Repeat Request (ARQ). A new performance indicator, PSNR per Hz, is defined to capture the video PSNR attained for a given effective bandwidth. For the 3GPP urban micro channel, MCS and MAC layer block lifetime are jointly determined as a function of average channel SNR in order to enhance video PSNR and goodput. At low SNR higher level QAM is inefficient (as a result of excessive MAC layer ARQ or high packet error rate) for video transfer. Results show that video efficiency improves for block lifetimes up to 100ms, since the greater use of ARQ enables more spectrally efficient MCS modes to be applied.","PeriodicalId":262660,"journal":{"name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123238499","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}
Virgile Garcia, Chung Shue Chen, N. Lebedev, J. Gorce
{"title":"Self-optimized precoding and power control in cellular networks","authors":"Virgile Garcia, Chung Shue Chen, N. Lebedev, J. Gorce","doi":"10.1109/PIMRC.2011.6140081","DOIUrl":"https://doi.org/10.1109/PIMRC.2011.6140081","url":null,"abstract":"In this paper, we propose an autonomous radio resource allocation and optimization scheme that chooses the transmit power and precoding vector among codebooks for multiple antennas transmitters to improve spectral and power efficiency and provide user fairness. Network self-optimization is an essential feature for supporting the cell densification in future wireless cellular systems. The proposed self-optimization is inspired by Gibbs sampler. We show that it can be implemented in a distributed manner and nevertheless achieves system-wide optimization which improves network throughput, power utilization efficiency, and overall service fairness. In addition, we extend the work and include power pricing to parametrize and enhance energy efficiency further. Simulation results show that the proposed scheme can outperform today's default modes of operation in network throughput, energy efficiency, and user fairness.","PeriodicalId":262660,"journal":{"name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"18 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120907035","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}
Mauricio Iturralde, T. Ali-Yahiya, A. Wei, A. Beylot
{"title":"Resource allocation using Shapley value in LTE networks","authors":"Mauricio Iturralde, T. Ali-Yahiya, A. Wei, A. Beylot","doi":"10.1109/PIMRC.2011.6139974","DOIUrl":"https://doi.org/10.1109/PIMRC.2011.6139974","url":null,"abstract":"The LTE specification provides QoS of multimedia services with fast connectivity, high mobility and security. However, 3GPP specifications have not defined scheduling algorithms to support real time and non-real time application services. In this paper we propose a two level scheduling scheme composed by cooperative game concept and EXP-RULE scheduling algorithm. By using cooperative game theory such as bankruptcy game and Shapley value, the proposed mechanism works by forming coalition between flow classes to distribute the bandwidth fairly. To make a performance judgment, the proposed downlink scheduling scheme has been compared to other well known schedulers such as M-LWDF and PF. Simulation results show that the proposed scheme can improve the performance on the used metrics among services. The performance evaluation is conducted in terms of system throughput, packet loss ratio (PLR), cell spectral efficiency and fairness Index.","PeriodicalId":262660,"journal":{"name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115483860","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}
{"title":"An efficient measurement report mechanism for Long Term Evolution networks","authors":"Shih-Fan Chou, Hsi-Lu Chao, Chia-Lung Liu","doi":"10.1109/PIMRC.2011.6139858","DOIUrl":"https://doi.org/10.1109/PIMRC.2011.6139858","url":null,"abstract":"LONG-TERM EVOLUTION (LTE) is expected to ensure 3GPP's competitive edge over other cellular technologies. The advantages of LTE include improving end-user throughputs, and reducing latency. LTE systems utilize a network-controlled and the user equipment (UE) assisted handover procedure for mobility in connected mode. In this paper, we first introduce the measurement report mechanism defined in the specification of LTE systems. We further explore possible problems and the impact on handover decision. Followed, we propose rules for timer adjustment, including timeToTrigger and reportInterval. Our mechanism aims at reducing incorrect handover decisions and maximizing the throughput performance. By conducting simulation, we evaluate the designed mechanism. The simulation results show that our proposed mechanism does achieve our design goals.","PeriodicalId":262660,"journal":{"name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123079103","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}
{"title":"Scenario-based regulatory requirements for cognitive radio","authors":"M. Barrie, S. Delaere, P. Ballon","doi":"10.1109/PIMRC.2011.6139933","DOIUrl":"https://doi.org/10.1109/PIMRC.2011.6139933","url":null,"abstract":"There still remain some uncertainties about cognitive radio (CR) that slow down the implementation of CR technologies. The obscurity of the required regulatory actions prior to CR adoption is one of the reasons why the industry is still hesitant in moving forward. Vice versa, regulators are waiting for industry to bring forward relevant (business) scenarios in which CR could be used. This way, appropriate regulatory measures can be taken for each of these scenarios. In order to break this deadlock, this paper proposes a classification of distinct scenarios in which CR would be of use, based on three theoretic business parameters. For the resulting scenarios, this paper will identify the roadblocks that hamper CR implementation and this makes it possible to indicate matching regulatory actions that could solve the issues. As will become clear from this paper, distinct scenarios require distinct regulatory measures, of distinct nature (technical, administrative, support, research), taken by regulatory instances on various levels (e.g. national administrations, international administrations, standardization bodies).","PeriodicalId":262660,"journal":{"name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121815123","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}