Interference-Aware subcarrier allocation in a correlated mimo downlink transmission

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The demand for high data rate in wireless communication has increased dramatically over the last two decades. Multiple-Input Multiple-Output (MIMO) transmission is one of the efficient ways to transmit high data rate is by employing multiple antenna configuration at both the transmitter and the receiver. One of the MIMO scheme, known as Spatial Multiplexing (SM), relies on the linear independence data streams from different transmit antennas to exploit the capacity from the fading channels. Consequently, SM suffers considerably from the effect of spatial correlation, thus becomes the limiting factor in achieving the capacity benefit that SM offers. In an attempt to increase the robustness of the SM transmission for deployment in a wide range of correlated channels, the use of interference-aware subcarrier allocation is proposed. The Signal- to-Interference-and-Noise Ratio (SINR) metric is used as the performance metric to determine subcarrier quality which can then be utilized in the allocation process in order to exploit the multiuser diversity gain that can be offered in an Orthogonal Frequency Division Multiple Access (OFDMA) system. From the simulation results, it is shown that the proposed subcarrier allocation has improved the BER performance of SM transmission in highly correlated channels environment.

Original languageEnglish
Pages (from-to)158-169
Number of pages12
JournalWSEAS Transactions on Communications
Volume11
Issue number4
Publication statusPublished - Apr 2012

Fingerprint

Multiplexing
Antennas
Frequency division multiple access
Fading channels
Transmitters
Communication

Keywords

  • Correlated channel
  • Interference
  • MIMO
  • OFDMA
  • SINR
  • Spatial correlation
  • Spatial multiplexing
  • Subcarrier allocation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications
  • Computer Science Applications

Cite this

Interference-Aware subcarrier allocation in a correlated mimo downlink transmission. / Nordin, Rosdiadee.

In: WSEAS Transactions on Communications, Vol. 11, No. 4, 04.2012, p. 158-169.

Research output: Contribution to journalArticle

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