2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications最新文献_第2页

Spectrum sensing based on linear self-signal elimination for opportunistic spectrum access 基于线性自信号消除的机会频谱接入频谱感知

2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2008-12-08 DOI: 10.1109/PIMRC.2008.4699903

Dong Chen, Jiandong Li, Jing Ma

引用次数: 3

Complexity reduction of iterative minimum mean square error detection and decoding techniques 降低迭代最小均方误差检测和解码技术的复杂性

2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2008-12-08 DOI: 10.1109/PIMRC.2008.4699688

K. Kusume

引用次数: 2

Facing the obstructed path problem in indoor TOA-based ranging between IEEE 802.11 nodes 面对IEEE 802.11节点间基于toa的室内测距路径阻塞问题

2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2008-12-08 DOI: 10.1109/PIMRC.2008.4699665

M. Ciurana, F. Barceló

引用次数: 3

A game theoretic approach to distributed resource allocation for OFDMA-based relaying networks 基于ofdma中继网络分布式资源分配的博弈论方法

2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2008-12-08 DOI: 10.1109/PIMRC.2008.4699870

Yuwen Pan, A. Nix, M. Beach

{"title":"A game theoretic approach to distributed resource allocation for OFDMA-based relaying networks","authors":"Yuwen Pan, A. Nix, M. Beach","doi":"10.1109/PIMRC.2008.4699870","DOIUrl":"https://doi.org/10.1109/PIMRC.2008.4699870","url":null,"abstract":"In this paper, algorithms on distributed resource (spectrum and power) sharing for relay stations are investigated for downlink transmissions in an OFDMA-based relay-aided cell. Both system capacity and user fairness are considered. By grouping the relay stations into coalitions according to the set of users they are relaying, the optimal resource allocation can be solved by considering resource allocation within and among the coalitions. The algorithm for intra-coalition resource allocation is proposed by utilizing the key observation: for each data symbol transmitted from the base station to a user (in a subcarrier), only one among all the available relay stations is required to relay the symbol. The inter-coalition resource allocation is modeled by both a non-cooperative and a cooperative game, where the cooperative game is solved by a nonsymmetric Nash bargaining solution. Simulation results show that the non-cooperative algorithm outperforms random allocation by approximately 50% in system capacity with 3 relay stations in each coalition. The cooperative algorithm has approximately 5% loss in system capacity comparing with the non-cooperative algorithm, but achieves a significant gain in terms of fairness performance.","PeriodicalId":125554,"journal":{"name":"2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"172 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123445374","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}

引用次数: 13

Joint turbo channel estimation and data recovery in fast fading mobile coded OFDM 快速衰落移动编码OFDM联合turbo信道估计与数据恢复

2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2008-12-08 DOI: 10.1109/PIMRC.2008.4699412

D. Liu, M. Fitz

{"title":"Joint turbo channel estimation and data recovery in fast fading mobile coded OFDM","authors":"D. Liu, M. Fitz","doi":"10.1109/PIMRC.2008.4699412","DOIUrl":"https://doi.org/10.1109/PIMRC.2008.4699412","url":null,"abstract":"Orthogonal frequency division multiplexing (OFDM) systems suffer performance degradation in fast fading channels due to intercarrier interference (ICI). Combining frequency domain equalization and bit-interleaved coded modulation (BICM), the iterative receiver is able to harvest both temporal and frequency diversity. In order to perform coherent detection and estimation, channel state information (CSI) is critical. Conventional frequency domain channel estimation (CE) methods have an irreducible error floor at high normalized Doppler frequency fdTs, since ICI corrupts the orthogonality among subcarriers. Considering that the fast time-varying channel is also a source of temporal diversity, CE ought to take place in the pre-FFT time domain. With soft a priori information about the data symbols becomes available, this paper proposes a turbo channel estimator (TCE) structure which provides a way to consistently improve the bit error rate (BER). The complexity of TCE is further reduced by completely avoiding matrix inversion. Simulation results demonstrate that the PSAM system with TCE achieves no ICI with normalized Doppler frequency fdTs up to 20.46% with realistic mobile WiMAX channel environment.","PeriodicalId":125554,"journal":{"name":"2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123775770","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}

引用次数: 7

Least Median of Squares for non-line-of-sight error mitigation in GSM localization GSM定位中非视距误差缓解的最小二乘中值算法

2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2008-12-08 DOI: 10.1109/PIMRC.2008.4699757

Á. Marco, Roberto Casas, Ángel Asensio, Victorián Coarasa, Rubén Blasco Marín, Alejandro Ibarz

引用次数: 11

A new space-time diversity scheme for WLAN systems 一种新的无线局域网空时分集方案

2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2008-12-08 DOI: 10.1109/PIMRC.2008.4699536

M. Krasicki, P. Szulakiewicz

引用次数: 2

Performance comparison of multipath reactive Ad hoc routing protocols 多路径响应式Ad hoc路由协议的性能比较

2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2008-12-08 DOI: 10.1109/PIMRC.2008.4699582

V. Toubiana, H. Labiod, L. Reynaud, Y. Gourhant

{"title":"Performance comparison of multipath reactive Ad hoc routing protocols","authors":"V. Toubiana, H. Labiod, L. Reynaud, Y. Gourhant","doi":"10.1109/PIMRC.2008.4699582","DOIUrl":"https://doi.org/10.1109/PIMRC.2008.4699582","url":null,"abstract":"The recent proliferation of wireless devices extends the scope of mobile ad hoc networks (MANETs) applications beyond the military domain to include civil and commercial application scenarios. Since MANETs are composed of mobile terminals with limited resources, guaranteeing their security remains an unsolved and motivating challenge. Due to advantageous features like infrastructureless and spontaneous deployment, MANETs offer an opportunity to set up temporary, dynamic and local networks for low cost. However, some of their characteristics like unreliability of wireless links, dynamic topology, and absence of underlying infrastructure raise serious problems which become critical when security is also considered. Multipath routing scheme enhances the robustness of routing protocols and offers a mean to mitigate networks mobility impact and node misbehaviors. In this paper we compare the performances of five multipath routing protocols: three node-disjoint multipath routing protocols and two routing protocols based on a Untrusted Node Disjoint (UND) path scheme. Comparisons between these protocols highlight the improvements raised by the UND scheme under different attack configurations.","PeriodicalId":125554,"journal":{"name":"2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126638901","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}

引用次数: 4

Spectrum sharing with legacy RANs using cognitive MC-CDMA 使用认知MC-CDMA与传统ran共享频谱

2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2008-12-08 DOI: 10.1109/PIMRC.2008.4699422

A. Attar, M. R. Nakhai, H. Aghvami

引用次数: 0

Assessing link quality in IEEE 802.11 Wireless Networks: Which is the right metric? 评估IEEE 802.11无线网络中的链路质量:哪个是正确的度量?

2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2008-12-08 DOI: 10.1109/PIMRC.2008.4699837

Angelos Vlavianos, Lap Kong Law, Ioannis Broustis, S. Krishnamurthy, M. Faloutsos

引用次数: 184