Sciweavers

Share
ICASSP
2011
IEEE
7 years 7 months ago
How much feedback overhead is required for base station cooperative transmission to outperform non-cooperative transmission?
Coherent base station (BS) cooperative transmission provides high spectrum efficiency for cellular systems when channel state information (CSI) is perfectly known at the BSs. For...
Xueying Hou, Chenyang Yang
TSP
2010
7 years 10 months ago
Mitigating channel estimation error with timing synchronization tradeoff in cooperative communications
Channel estimation error and co-channel interference (CCI) problems are among the main causes of performance degradation in wireless networks. In this paper, we investigate the im...
Ahmed S. Ibrahim, K. J. Ray Liu
JSAC
2011
176views more  JSAC 2011»
7 years 10 months ago
Cross-Layer Routing Using Cooperative Transmission in Vehicular Ad-hoc Networks
Wireless vehicular ad hoc networks are characterized by multi-hop transmission, where a key problem is the design of routing, e.g., how to efficiently direct the information flo...
Zhiguo Ding, Kin K. Leung
TWC
2008
129views more  TWC 2008»
8 years 3 months ago
Amplify-and-forward cooperation under interference-limited spatial reuse of the relay slot
1 . Cooperative transmission has emerged as an effective tool to deal with channel impairments. In this work we study the applicability of amplify-and-forward cooperative transmiss...
Adrian Agustin, Josep Vidal
TIT
2008
129views more  TIT 2008»
8 years 3 months ago
Cooperative Fading Regions for Decode and Forward Relaying
Abstract--Cooperative transmission protocols over fading channels are based on a number of relaying nodes to form virtual multiantenna transmissions. Diversity provided by these te...
Stefano Savazzi, Umberto Spagnolini
JCM
2008
81views more  JCM 2008»
8 years 3 months ago
Power Allocation for Amplify-and-Forward Cooperative Transmission Over Rayleigh-Fading Channels
Cooperative transmission has been used to achieve diversity gain through partner to create multiple independent fading channels. It has attracted lots of research attention in rece...
Lian Zhao, Zaiyi Liao
CORR
2008
Springer
124views Education» more  CORR 2008»
8 years 3 months ago
High Performance Cooperative Transmission Protocols Based on Multiuser Detection and Network Coding
Abstract--Cooperative transmission is an emerging communication technique that takes advantage of the broadcast nature of wireless channels. However, due to low spectral efficiency...
Zhu Han, Xin Zhang, H. Vincent Poor
ICASSP
2010
IEEE
8 years 3 months ago
Error resilient video multicast using Randomized Distributed Space Time Codes
—In this paper we study a two-hop cooperative transmission scheme where multiple relays forward the data simultaneously using Randomized Distributed Space Time Codes (R-DSTC). We...
Ozgu Alay, Pei Liu, Yao Wang, Elza Erkip, Shivendr...
VTC
2006
IEEE
211views Communications» more  VTC 2006»
8 years 9 months ago
Amplify-and-Forward Cooperative Transmission with Multiple Relays Using Phase Feedback
Abstract-Cooperative transmission obtains the spatial diversity gains created by sharing antennas of terminals in wireless networks. Although the amplify-and-forward (AF) cooperati...
Dongwoo Lee, Young Seok Jung, Jae Hong Lee
IPCCC
2006
IEEE
8 years 9 months ago
Energy-efficient cooperative routing in multi-hop wireless ad hoc networks
We study the routing problem for multi-hop wireless ad hoc networks based on cooperative transmission. We prove that the Minimum Energy Cooperative Path (MECP) routing problem, i....
Fulu Li, Kui Wu, Andrew Lippman
books