Separate Source-Channel Coding for Transmitting Correlated Gaussian Sources Over Degraded Broadcast Channels

被引：12

作者：

Gao, Yang ^{[1
]}

Tuncel, Ertem ^{[1
]}

机构：

[1] Univ Calif Riverside, Dept Elect Engn, Riverside, CA 92521 USA

来源：

IEEE TRANSACTIONS ON INFORMATION THEORY | 2013年 / 59卷 / 06期

基金：

美国国家科学基金会;

关键词：

Channel uses per source symbol; correlated sources; degraded broadcast channels; joint source-channel coding; separate source-channel coding;

D O I：

10.1109/TIT.2013.2246856

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The problem of transmitting a pair of correlated Gaussian sources over degraded broadcast channels using optimal separate source and channel codes is studied. Upper bounds are derived for the rate penalty (in terms of channel uses per source symbol) and the power loss endured by separate coding compared to joint coding. Although source-channel separation is suboptimal in general, it is demonstrated that the performance of separate coding comes close to that of optimal joint coding, especially for low distortion pairs. In fact, in some cases, separate coding performs better than the best known joint schemes so far. It is also shown analytically that separate coding is optimal when either of the sources is to be reconstructed in a near-lossless fashion.

引用

页码：3619 / 3634

页数：16

共 16 条

[1]

Behroozi H., 2009, IEEE INT S INF THEOR

[2]

Behroozi H., 2009, IEEE INF THEOR WORKS

[3] On the Performance of Hybrid Digital-Analog Coding for Broadcasting Correlated Gaussian Sources [J].

Behroozi, Hamid ;

Alajaji, Fady ;

Linder, Tamas .

IEEE TRANSACTIONS ON COMMUNICATIONS, 2011, 59 (12) :3335-3342

[4] SIMPLE CONVERSE FOR BROADCAST CHANNELS WITH ADDITIVE WHITE GAUSSIAN NOISE [J].

BERGMANS, PP .

IEEE TRANSACTIONS ON INFORMATION THEORY, 1974, 20 (02) :279-280

[5]

Bross S., 2008, IEEE INT S INF THEOR

[6] BROADCAST CHANNELS [J].

COVER, TM .

IEEE TRANSACTIONS ON INFORMATION THEORY, 1972, 18 (01) :2-+

[7] Successive Refinement of Vector Sources Under Individual Distortion Criteria [J].

Nayak, Jayanth ;

Tuncel, Ertem ;

Gunduz, Deniz ;

Erkip, Elza .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2010, 56 (04) :1769-1781

[8] Successive Coding of Correlated Sources [J].

Nayak, Jayanth ;

Tuncel, Ertem .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2009, 55 (09) :4286-4298

[9] Distortion bounds for broadcasting with bandwidth expansion [J].

Reznic, Zvi ;

Feder, Meir ;

Zamir, Ram .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2006, 52 (08) :3778-3788

[10]

Soundararajan R., 2009, IEEE INT S INF THEOR

← 1 2 →