On the Maximum Useful Number of Receiver Antennas for MRC Diversity in Cochannel Interference and Noise

— The effect of noise on the maximum useful number of receiver antennas that can be deployed in a cochannel interference diversity system is examined. The long term signalpower-to-interference-plus-noise-power ratio (SINRP), the long term signal amplitude to the square root of interference plus noise power ratio (SAINPR), the average instantaneous signal-tointerference-plus-noise ratio (AISINR), and the average bit error rate (BER) of a maximal ratio combining (MRC) diversity system in the presence of multiple cochannel interferers and additive white Gaussian noise (AWGN) are evaluated when the desired user signal and the interfering user signals are independent, and each of them experiences correlated Ricean fading at the receiver antennas. The results show that a previous design rule which states that the performance of a fixed-size antenna array containing the maximum number of independent antennas cannot be significantly improved by adding more than one additional antenna, stil...

• Type: Conference
• Year: 2007
• Where: ICC
• Authors: Norman C. Beaulieu, Xiaodi Zhang
• Keywords: Additive White Gaussian Noise, Communications, ICC 2007, Noise Power Ratio, Receiver Antennas