arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1407.8409cs.ITmath.IT
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具有接收端信息的3接收端高斯广播信道的联合网络和Gelfand-Pinsker编码

Joint Network and Gelfand-Pinsker Coding for 3-Receiver Gaussian Broadcast Channels with Receiver Message Side Information

Jin Sima, Wei Chen

摘要:

用接收机消息侧信息表征高斯广播信道的容量区域的问题似乎很困难,并且对于N >= 3个接收机仍然是开放的。本文提出了一种适用于三接收机情况的联合网络和Gelfand-Pinsker编码方法。利用该方法,我们建立了一般消息侧信息配置下3接收高斯广播信道容量区域的统一内界。内界的可扩展性证明使用联合干扰消除的思想,其中通过在编码器处使用脏纸编码和在一些解码器处使用连续解码来消除干扰。我们表明,内界是大于实现的最先进的编码方案。一个外边界也建立,并显示出在所有64个可能的情况下,46个是紧的。

英文摘要:

The problem of characterizing the capacity region for Gaussian broadcast channels with receiver message side information appears difficult and remains open for N >= 3 receivers. This paper proposes a joint network and Gelfand-Pinsker coding method for 3-receiver cases. Using the method, we establish a unified inner bound on the capacity region of 3-receiver Gaussian broadcast channels under general message side information configuration. The achievability proof of the inner bound uses an idea of joint interference cancelation, where interference is canceled by using both dirty-paper coding at the encoder and successive decoding at some of the decoders. We show that the inner bound is larger than that achieved by state of the art coding schemes. An outer bound is also established and shown to be tight in 46 out of all 64 possible cases.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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