On the Separability of Parallel Gaussian Interference Channels

被引:5
作者
Choi, Sang Won [1 ]
Chung, Sae-Young [1 ]
机构
[1] Korea Adv Inst Sci & Technol, Sch EECS, Taejon 305701, South Korea
来源
2009 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY, VOLS 1- 4 | 2009年
关键词
CAPACITY; BOUNDS;
D O I
10.1109/ISIT.2009.5205979
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The separability in parallel Gaussian interference channels (PGICs) is studied in this paper. We generalize the separability results in one-sided PGICs (OPGICs) by Sung et al. to two-sided PGICs (TPGICs). Specifically, for strong and mixed TPGICs, we show necessary and sufficient conditions for the separability. For this, we show diagonal covariance matrices are sum-rate optimal for strong and mixed TPGICs.
引用
收藏
页码:2592 / 2596
页数:5
相关论文
共 16 条
[1]  
ANNAPUREDDY VS, GAUSSIAN INTERFERENC
[2]  
[Anonymous], 1988, Matrix Analysis
[3]   CASE WHERE INTERFERENCE DOES NOT REDUCE CAPACITY [J].
CARLEIAL, AB .
IEEE TRANSACTIONS ON INFORMATION THEORY, 1975, 21 (05) :569-570
[4]  
CHOI SW, SEPARABILITY P UNPUB
[5]   THE CAPACITY REGION OF THE DISCRETE MEMORYLESS INTERFERENCE CHANNEL WITH STRONG INTERFERENCE [J].
COSTA, MHM ;
ELGAMAL, AA .
IEEE TRANSACTIONS ON INFORMATION THEORY, 1987, 33 (05) :710-711
[6]  
ETKIN RH, 2007, IEEE T INF THE UNPUB
[7]   Outer bounds on the capacity of Gaussian interference channels [J].
Kramer, G .
IEEE TRANSACTIONS ON INFORMATION THEORY, 2004, 50 (03) :581-586
[8]   Capacity Bounds for the Gaussian Interference Channel [J].
Motahari, Abolfazl Seyed ;
Khandani, Amir Keyvan .
IEEE TRANSACTIONS ON INFORMATION THEORY, 2009, 55 (02) :620-643
[9]  
SANKAR L, 2008, P ALL C