A Hybrid RTS-BP Algorithm for Improved Detection of Large-MIMO M-QAM Signals

Abstract--Low-complexity near-optimal detection of large-MIMO signals has attracted recent research. Recently, we proposed a local neighborhood search algorithm, namely reactive tabu search (RTS) algorithm, as well as a factor-graph based belief propagation (BP) algorithm for low-complexity large-MIMO detection. The motivation for the present work arises from the following two observations on the above two algorithms: ) Although RTS achieved close to optimal performance for 4-QAM in large dimensions, significant performance improvement was still possible for higher-order QAM (e.g., 16-, 64-QAM). ) BP also achieved near-optimal performance for large dimensions, but only for {

• Type: Journal
• Year: 2010
• Where: CORR
• Authors: Tanumay Datta, N. Srinidhi, Ananthanarayanan Chockalingam, B. Sundar Rajan
• Keywords: Algorithms, CORR 2010, Detection, Education, RTS Output