Iterative multiuser detection using antenna arrays and FEC onmultipath channels

摘要

This paper investigates a multiple-access communication receivernsystem that receives coded data modulated using either direct-sequencencode division multiple access or narrowband binary phase shift keying,nwith an antenna array in a multipath propagation environment. Wendescribe an iterative receiver that improves the initial estimates fromnthe antenna array, and therefore reduces the multiple accessninterference. Simulation results show that the bit error ratenperformance approaches that obtained when only one user's signal isnincident on the array. This occurs even with a large number of users inncomparison to the product of the spreading gain and array size