HomeHome

Blind Decoding of Multiple Description Codes over OFDM Systems via Sequential Monte Carlo

Xiaodong Wang; Zigang Yang; Dong Guo

Title:
Blind Decoding of Multiple Description Codes over OFDM Systems via Sequential Monte Carlo
Author(s):
Wang, Xiaodong
Yang, Zigang
Guo, Dong
Date:
Type:
Articles
Department(s):
Electrical Engineering
Volume:
2005
Persistent URL:
Book/Journal Title:
EURASIP Journal on Wireless Communications and Networking
Abstract:
We consider the problem of transmitting a continuous source through an OFDM system. Multiple description scalar quantization (MDSQ) is applied to the source signal, resulting in two correlated source descriptions. The two descriptions are then OFDM modulated and transmitted through two parallel frequency-selective fading channels. At the receiver, a blind turbo receiver is developed for joint OFDM demodulation and MDSQ decoding. Transformation of the extrinsic information of the two descriptions are exchanged between each other to improve system performance. A blind soft-input soft-output OFDM detector is developed, which is based on the techniques of importance sampling and resampling. Such a detector is capable of exchanging the so-called extrinsic information with the other component in the above turbo receiver, and successively improving the overall receiver performance. Finally, we also treat channel-coded systems, and a novel blind turbo receiver is developed for joint demodulation, channel decoding, and MDSQ source decoding.
Subject(s):
Orthogonal frequency division multiplexing
Electrical engineering
Publisher DOI:
https://doi.org/10.1155/WCN.2005.141
Item views
294
Metadata:
text | xml
Suggested Citation:
Xiaodong Wang, Zigang Yang, Dong Guo, , Blind Decoding of Multiple Description Codes over OFDM Systems via Sequential Monte Carlo, Columbia University Academic Commons, .

Columbia University Libraries | Policies | FAQ