On the Performance of Cognitive Underlay SIMO Networks over Equally Correlated Rayleigh Fading Channels

  • Tu Lam Thanh Posts and Telecommunications Institute of Technology, Ho Chi Minh City
  • Vo Nguyen Quoc Bao Posts and Telecommunications Institute of Technology, Ho Chi Minh City
  • Pham Thi Dan Ngoc Posts and Telecommunications Institute of Technology, Ho Chi Minh City
  • Tran Trung Duy Posts and Telecommunications Institute of Technology, Ho Chi Minh City

Abstract

The performance of single-input multiple-output (SIMO) cognitive spectrum sharing networks with the presence of equally correlated Rayleigh fading channels is investigated. In particular, based on the truncated infinitive series of cumulative distribution function (CDF) and probability density function (PDF) of the end-to-end signal-to-noise ratios (SNRs), close-form expressions are provided for the system outage performance, bit error rate and ergodic capacity. It is shown that the system performance merely depends on the correlation coefficient between antennas. Monte-Carlo simulations are also contributed to confirm the accuracy of our analysis.
Published
2016-02-09
Section
Regular articles