Computer Science – Information Theory
Scientific paper
2011-10-04
Computer Science
Information Theory
Appeared at Allerton conference Sept 2011
Scientific paper
We consider the role of Wyner-Ziv binning in compress-forward for relay channels. In the one-way relay channel, we analyze a compress-forward scheme without Wyner- Ziv binning but with joint decoding of both the message and compression index. It achieves the same rate as the original compress-forward scheme with binning and successive decoding. Therefore, binning helps reduce decoding complexity by allowing successive decoding, but has no impact on achievable rate for the one-way relay channel. On the other hand, no binning simplifies relay operation. By extending compress-forward without binning to the two-way relay channel, we can achieve a larger rate region than the original compress-forward scheme when the channel is asymmetric for the two users. Binning and successive decoding limits the compression rate to match the weaker of the channels from relay to two users, whereas without binning, this restriction no longer applies. Compared with noisy network coding, compress-forward without binning achieves the same rate region in certain Gaussian channel configurations, and it has much less delay. This work is a step toward understanding the role of Wyner-Ziv binning in compress-forward relaying.
Vu Mai
Zhong Peng
No associations
LandOfFree
Compress-Forward without Wyner-Ziv Binning for the One-Way and Two-Way Relay Channels does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Compress-Forward without Wyner-Ziv Binning for the One-Way and Two-Way Relay Channels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compress-Forward without Wyner-Ziv Binning for the One-Way and Two-Way Relay Channels will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-269880