On the Ergodic Capacity of Multi-Hop Wireless Relaying Systems

被引：125

作者：

Farhadi, Golnaz ^{[1
]}

Beaulieu, Norman C. ^{[1
]}

机构：

[1] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 2V4, Canada

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2009年 / 8卷 / 05期

关键词：

Amplify-and-forward; decode-and-forward; ergodic capacity; multi-hop transmission; Rayleigh fading; TO-END PERFORMANCE; TRANSMISSION-SYSTEMS; CHANNELS; THEOREMS; BOUNDS;

D O I：

10.1109/TWC.2009.080818

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 ergodic capacity in Rayleigh fading of multi-hop wireless transmission systems employing either amplify-and-forward relaying or decode-and-forward relaying is studied, assuming channel state information is only known at the receiving terminals. Two upper bounds based on Jensen's inequality and the harmonic-geometric means inequality as well as an infinite series representation for the ergodic capacity of an amplify-and-forward multi-hop transmission system are derived. Numerical results are provided to examine the tightness of the upper bounds as well as to show the high accuracy of the infinite series approach. In addition, the ergodic capacity of a decode-and-forward multi-hop transmission system is obtained. It is shown that multi-hop transmission systems employing a decode-and-forward relaying scheme achieve higher ergodic capacities than multi-hop transmission systems with amplify-and-forward relaying schemes.

引用

页码：2286 / 2291

页数：6

共 28 条

[1]

Abramowitz M., 1972, Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables

[2]

[Anonymous], IEEE T COMMUN

[3] Fading channels: Information-theoretic and communications aspects [J].

Biglieri, E ;

Proakis, J ;

Shamai, S .

IEEE TRANSACTIONS ON INFORMATION THEORY, 1998, 44 (06) :2619-2692

[4]

COVER TM, 1979, IEEE T INFORM THEORY, V25, P572, DOI 10.1109/TIT.1979.1056084

[5] Bounds on capacity and minimum energy-per-bit for AWGN relay channels [J].

El Gamal, A ;

Mohseni, M ;

Zahedi, S .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2006, 52 (04) :1545-1561

[6] Capacity of a class of relay channels with orthogonal components [J].

El Gamal, A ;

Zahedi, S .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2005, 51 (05) :1815-1817

[7] On the Ergodic Capacity of Wireless Relaying Systems over Rayleigh Fading Channels [J].

Farhadi, Golnaz ;

Beaulieu, Norman C. .

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2008, 7 (11) :4462-4467

[8] On the outage and error probability of amplify-and-forward multi-hop diversity transmission systems [J].

Farhadi, Golnaz ;

Beaulieu, Norman C. .

2008 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, PROCEEDINGS, VOLS 1-13, 2008, :3748-3754

[9] On the performance of amplify-and-forward cooperative systems with fixed gain relays [J].

Farhadi, Golnaz ;

Beaulieu, Norman C. .

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2008, 7 (05) :1851-1856

[10]

Gradshteyn IS, 2000, Table of integrals, series, and products

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