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TWC
2011
417views more  TWC 2011»
10 years 7 months ago
A Spatiotemporal Approach for Secure Range Queries in Tiered Sensor Networks
Abstract—We target a two-tier sensor network with resourcerich master nodes at the upper tier and resource-poor sensor nodes at the lower tier. Master nodes collect data from sen...
Jing Shi, Rui Zhang, Yanchao Zhang
TWC
2011
351views more  TWC 2011»
10 years 8 months ago
Distributed Adaptation of Quantized Feedback for Downlink Network MIMO Systems
Abstract—This paper focuses on quantized channel state information (CSI) feedback for downlink network MIMO systems. Specifically, we propose to quantize and feedback the CSI of...
Sheng Zhou, Jie Gong, Zhisheng Niu
TWC
2011
320views more  TWC 2011»
10 years 8 months ago
Cognitive Transmissions with Multiple Relays in Cognitive Radio Networks
In cognitive radio networks, each cognitive transmission process typically requires two phases: the spectrum sensing phase and data transmission phase. In this paper, we investiga...
YuLong Zou, Yu-Dong Yao, Baoyu Zheng
TWC
2011
291views more  TWC 2011»
10 years 8 months ago
On Optimal Cooperator Selection Policies for Multi-Hop Ad Hoc Networks
Abstract—In this paper we consider wireless cooperative multihop networks, where nodes that have decoded the message at the previous hop cooperate in the transmission toward the ...
Michele Rossi, Cristiano Tapparello, Stefano Tomas...
TWC
2011
275views more  TWC 2011»
10 years 8 months ago
A Novel Uplink Multiple Access Scheme Based on TDS-FDMA
—This contribution proposes a novel time-domain synchronous frequency division multiple access (TDS-FDMA) scheme to support multi-user uplink application. A unified frame struct...
Linglong Dai, Zhaocheng Wang, Sheng Chen
TWC
2011
254views more  TWC 2011»
10 years 8 months ago
Blind Channel Estimation for STBC Systems Using Higher-Order Statistics
—This paper describes a new blind channel estimation algorithm for Space-Time Block Coded (STBC) systems. The proposed method exploits the statistical independence of sources bef...
Vincent Choqueuse, Ali Mansour, Gilles Burel, Ludo...
TWC
2011
256views more  TWC 2011»
10 years 8 months ago
Contextual Communications Congestion Control for Cooperative Vehicular Networks
—The wide scale deployment of cooperative vehicular ad-hoc networks will require the design of efficient congestion control policies that guarantee stable and reliable communica...
Miguel Sepulcre, Javier Gozálvez, Jé...
TWC
2011
301views more  TWC 2011»
10 years 8 months ago
Performance Evaluation of a MIMO-Assisted MPR-MAC over Lossy Channels
Abstract—Coping with collisions is one of the biggest challenges in the design of MAC algorithms for wireless networks. Recent advances in MIMO communications have provided the p...
Sanaz Barghi, Hamid Jafarkhani, Homayoun Yousefi'z...
TWC
2011
272views more  TWC 2011»
10 years 8 months ago
On the Study of Analogue Network Coding for Multi-Pair, Bidirectional Relay Channels
—We consider a scenario where multiple pairs of users exchange information within pair with the help of a dedicated multi-antenna relay. The co-channel interference among multipl...
Chee Yen Leow, Zhiguo Ding, Kin K. Leung, Dennis G...
TWC
2011
232views more  TWC 2011»
10 years 8 months ago
Joint Detection of Primary Systems Using UWB Impulse Radios
Abstract—Regulation in Europe and Japan requires the implementation of detect-and-avoid (DAA) techniques in some bands for the coexistence of licensed primary systems and seconda...
Serhat Erküçük, Lutz H.-J. Lampe,...
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