Successive Phase Sharing and Distributed Multiuser Precoding in Multirelay Systems

In wireless sensor networks, several relay nodes can be used to support multiple transmission links between source and destination nodes simultaneously to achieve higher spectral efficiency. A channel state information sharing scheme among multiple relay nodes is presented in this letter, where only...

Full description

Saved in:
Bibliographic Details
Published inIEEE signal processing letters Vol. 17; no. 10; pp. 859 - 862
Main Authors Long, Hang, Wang, Fangxiang, Zhang, Yueying, Zheng, Kan, Wang, Wenbo
Format Journal Article
LanguageEnglish
Published New York IEEE 01.10.2010
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Channel state information
channel state information (CSI)
Channels
Cooperative systems
Costs
Digital relays
Educational programs
Interference
Links
MIMO
MIMO systems
Networks
Power system relaying
Relay
relays
Samarium
Sensor arrays
Sensors
Signal processing
Simulation
Spectra
Wireless sensor networks
Online AccessGet full text

Cover

More Information
Summary:In wireless sensor networks, several relay nodes can be used to support multiple transmission links between source and destination nodes simultaneously to achieve higher spectral efficiency. A channel state information sharing scheme among multiple relay nodes is presented in this letter, where only one angle per source-destination pair is sent from one relay node to another. Then, to enhance received signal powers, a distributed multiuser precoding scheme is presented to be used at each relay node with the angles sent by another relay node. Simulation results demonstrate that the proposed distributed precoding scheme enhances the capacity performance with slight overhead.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1070-9908
1558-2361
DOI:10.1109/LSP.2010.2062505