Multipath diversity through time shifted sampling for spatially correlated OFDM-antenna array systems

Refik Çǎglar Kizilirmak, Yukitoshi Sanada

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

An essential condition for diversity reception is that the fading distributions between individual received signals of an antenna array are uncorrelated. In this paper, a new technique to improve the performance of transmission with the correlated Rayleigh-fading signals is proposed. In conventional array systems, individual receivers start sampling the received signals at the same time with the same sampling rate. On the other hand, in the proposed scheme, the received signals are again sampled with the same rate, however the sampling points are shifted in each receiver. Numerical results through computer simulation show that with correlated received signals, by applying the proposed technique the correlation can be reduced to a sufficient level for diversity reception.

Original languageEnglish
Pages (from-to)3104-3111
Number of pages8
JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
VolumeE91-A
Issue number11
DOIs
Publication statusPublished - Nov 2008
Externally publishedYes

Fingerprint

Antenna Arrays
Multipath
Orthogonal Frequency Division multiplexing (OFDM)
Antenna arrays
Orthogonal frequency division multiplexing
Diversity reception
Sampling
Fading (radio)
Rayleigh fading
Receiver
Rayleigh Fading
Fading
Computer simulation
Computer Simulation
Sufficient
Numerical Results

Keywords

  • Antenna array
  • Fading correlation
  • OFDM

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Graphics and Computer-Aided Design
  • Applied Mathematics
  • Signal Processing

Cite this

@article{6ef75b8456324727920617a6e3af5e98,
title = "Multipath diversity through time shifted sampling for spatially correlated OFDM-antenna array systems",
abstract = "An essential condition for diversity reception is that the fading distributions between individual received signals of an antenna array are uncorrelated. In this paper, a new technique to improve the performance of transmission with the correlated Rayleigh-fading signals is proposed. In conventional array systems, individual receivers start sampling the received signals at the same time with the same sampling rate. On the other hand, in the proposed scheme, the received signals are again sampled with the same rate, however the sampling points are shifted in each receiver. Numerical results through computer simulation show that with correlated received signals, by applying the proposed technique the correlation can be reduced to a sufficient level for diversity reception.",
keywords = "Antenna array, Fading correlation, OFDM",
author = "Kizilirmak, {Refik {\cC}ǎglar} and Yukitoshi Sanada",
year = "2008",
month = "11",
doi = "10.1093/ietfec/e91-a.11.3104",
language = "English",
volume = "E91-A",
pages = "3104--3111",
journal = "IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences",
issn = "0916-8508",
publisher = "Maruzen Co., Ltd/Maruzen Kabushikikaisha",
number = "11",

}

TY - JOUR

T1 - Multipath diversity through time shifted sampling for spatially correlated OFDM-antenna array systems

AU - Kizilirmak, Refik Çǎglar

AU - Sanada, Yukitoshi

PY - 2008/11

Y1 - 2008/11

N2 - An essential condition for diversity reception is that the fading distributions between individual received signals of an antenna array are uncorrelated. In this paper, a new technique to improve the performance of transmission with the correlated Rayleigh-fading signals is proposed. In conventional array systems, individual receivers start sampling the received signals at the same time with the same sampling rate. On the other hand, in the proposed scheme, the received signals are again sampled with the same rate, however the sampling points are shifted in each receiver. Numerical results through computer simulation show that with correlated received signals, by applying the proposed technique the correlation can be reduced to a sufficient level for diversity reception.

AB - An essential condition for diversity reception is that the fading distributions between individual received signals of an antenna array are uncorrelated. In this paper, a new technique to improve the performance of transmission with the correlated Rayleigh-fading signals is proposed. In conventional array systems, individual receivers start sampling the received signals at the same time with the same sampling rate. On the other hand, in the proposed scheme, the received signals are again sampled with the same rate, however the sampling points are shifted in each receiver. Numerical results through computer simulation show that with correlated received signals, by applying the proposed technique the correlation can be reduced to a sufficient level for diversity reception.

KW - Antenna array

KW - Fading correlation

KW - OFDM

UR - http://www.scopus.com/inward/record.url?scp=77949886318&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77949886318&partnerID=8YFLogxK

U2 - 10.1093/ietfec/e91-a.11.3104

DO - 10.1093/ietfec/e91-a.11.3104

M3 - Article

VL - E91-A

SP - 3104

EP - 3111

JO - IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

JF - IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

SN - 0916-8508

IS - 11

ER -