Title :
Performance analysis for collaborative decoding with least-reliable-bit exchange over AWGN channels
Author :
Li, Xin ; Wong, Tan F. ; Shea, John M.
Author_Institution :
Wireless Inf. Networking Group, Florida Univ., Gainesville, FL, USA
Abstract :
In collaborative decoding, spatial diversity is achieved by exchanging decoding information among a cluster of physically separated receivers. The least-reliable-bit (LRB) exchange scheme helps collaborative decoding to lower the amount of information that must be exchanged while providing performance close to the maximal-ratio combining technique. In this paper, we approximately evaluate the error performance of the collaborative decoding with the LRB exchange scheme when nonrecursive convolutional codes are used. The Gaussian approximation and union bound are used in the analysis.
Keywords :
AWGN channels; Gaussian distribution; convolutional codes; diversity reception; maximum likelihood decoding; AWGN channels; Gaussian approximation; LRB exchange scheme; collaborative decoding; error performance; least-reliable-bit exchange; nonrecursive convolutional codes; performance analysis; physically separated receivers; spatial diversity; union bound; AWGN channels; Bit error rate; Collaboration; Collaborative work; Convolutional codes; Diversity reception; Information analysis; Iterative decoding; Performance analysis; Random variables;
Conference_Titel :
Communications, 2005. ICC 2005. 2005 IEEE International Conference on
Print_ISBN :
0-7803-8938-7
DOI :
10.1109/ICC.2005.1494438
