Ergodic capacity of M-1-1 AF relaying systems over rayleigh fading channels

Hyunkee Min, Sungeun Lee, Kyungchul Kwak, Hyungjong Kim, Daesik Hong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The amplify-and-forward relaying system considered here consists of a base station (BS) with M transmit antennas, K relay stations (RSs) with a single antenna each, and a mobile station (MS) with a single antenna. Upper bounds of ergodic capacities are derived for some specific values of M and general values of K where the best relay selection (BRS) is used, and the maximum-ratio- transmission (MRT) is applied for the BS-RS transmission. Numerical results show that increasing M enhances the ergodic capacity due to the reduction of noise propagation, and increasing K also enhances the ergodic capacity due to the K-th order diversity gain from the BRS. In addition, the effect of increasing K on capacity enhancement is much significant compared to that of increasing M. On the other hand, the capacity enhancement from increasing M is limited, whereas the capacity enhancement from increasing K is unlimited. In addition, the capacity enhancement from M and that from K are independent.

Original languageEnglish
Title of host publication6th Advanced International Conference on Telecommunications, AICT 2010
Pages247-251
Number of pages5
DOIs
Publication statusPublished - 2010 Aug 13
Event6th Advanced International Conference on Telecommunications, AICT 2010 - Barcelona, Spain
Duration: 2010 May 92010 May 15

Other

Other6th Advanced International Conference on Telecommunications, AICT 2010
CountrySpain
CityBarcelona
Period10/5/910/5/15

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All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Min, H., Lee, S., Kwak, K., Kim, H., & Hong, D. (2010). Ergodic capacity of M-1-1 AF relaying systems over rayleigh fading channels. In 6th Advanced International Conference on Telecommunications, AICT 2010 (pp. 247-251). [5489833] https://doi.org/10.1109/AICT.2010.53