Zero-Forcing for the Symmetric Interference Channel with Conferencing Encoders

被引：4
|
作者：
Bagheri, Hossein [1 ]
Motahari, Abolfazl S. [1 ]
Khandani, Amir K. [1 ]
机构：
[1] Univ Waterloo, Dept Elect & Comp Engn, Waterloo, ON N2L 3G1, Canada
来源：
2010 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY | 2010年
关键词：
CAPACITY; COOPERATION; REGION; BOUNDS;
D O I：
10.1109/ISIT.2010.5513355
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
A two-user Gaussian Interference Channel (GIC) is considered in which encoders are connected through noiseless links with finite capacities. New genie-aided upper bounds on the sum-capacity are developed which incorporate the capacities of the cooperative links. When the GIC is symmetric, with possibly different cooperation link capacities, the sum-capacity is characterized within 2.13 bits gap for all values of the channel parameters. In the achievable scheme, each transmitter sends a private and a common message, and zero-forces the part of the other transmitter's private message, communicated over the conference between the encoders.
引用
收藏
页码：370 / 374
页数：5
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