Proceedings ArticleDOI
Impact of reduced antenna spacing on the post-processing SINR of interference rejection combining in cellular downlink receivers
K. S. Karthik,Bhaskar Ramamurthi +1 more
- pp 1-5
TLDR
The impact of reduced antenna spacing on the post-processing signal-to-interference-plus-noise ratio (SINR) that is achievable in a UE performing IRC is studied and the invertibility and condition number of the ICM and its effects on thePost-processing SINR are investigated.Abstract:
The user equipments (UEs) in fourth-generation cellular networks employ multiple receive antennas for improved performance and reliability. In this scenario, interference rejection combining (IRC) has become a receiver of choice for its desirable properties such as interference mitigation and reduced complexity. Interference covariance matrix (ICM) inversion is a key step in obtaining the combiner weights in such a receiver. In this work, we study the impact of reduced antenna spacing on the post-processing signal-to-interference-plus-noise ratio (SINR) that is achievable in a UE performing IRC. We also investigate the invertibility and condition number of the ICM and its effects on the post-processing SINR. Finally, we study the impact of reduced antenna spacing on the post-processing SINR when there are channel estimation errors.read more
References
More filters
Book
4G: LTE/LTE-Advanced for Mobile Broadband
TL;DR: In this article, the authors focus on LTE with full updates including LTE-Advanced to provide a complete picture of the LTE system, including the physical layer, access procedures, broadcast, relaying, spectrum and RF characteristics, and system performance.
Journal ArticleDOI
Optimum Combining in Digital Mobile Radio with Cochannel Interference
TL;DR: Analytical and computer simulation techniques are used to determine the performance of optimum combining when the received desired and interfering signals are subject to Rayleigh fading, and results show that optimum combining is significantly better than maximal ratio combining even when the number of interferers is greater than thenumber of antennas.
Journal ArticleDOI
Effect of fading correlation on adaptive arrays in digital mobile radio
J. Salz,Jack Harriman Winters +1 more
TL;DR: Results show that the degradation in performance with correlation in an adaptive array that combats fading and suppresses interference is only slightly larger than that for combating fading alone, i.e., with maximal ratio combining.
Journal ArticleDOI
Optimum combining in digital mobile radio with cochannel interference
TL;DR: In this paper, the authors used analytical and computer simulation techniques to determine the performance of optimum combining when the received desired and interfering signals are subject to Rayleigh fading, and they showed that optimum combining is significantly better than maximal ratio combining even when the number of interferers is greater than number of antennas.
Journal ArticleDOI
Downlink capacity of interference-limited MIMO systems with joint detection
TL;DR: An adaptive detection scheme is developed, which together with a Turbo ST MUD structure offers substantial performance gain over the well-known V-BLAST techniques with coding in this interference-limited cellular environment.
Related Papers (5)
Joint Access Point Selection and Interference Cancellation for Cell-Free Massive MIMO
Indu Shakya,Falah H. Ali +1 more