Title :
A bi-directional zero-forcing BLAST receiver
Author_Institution :
Sch. of Electr. Eng. & Telecommun., Univ. of New South Wales, Sydney, NSW, Australia
Abstract :
Recently, the Bell Laboratories layered space time (BLAST) architecture with multiple transmit and multiple receive (MTMR) antennas has been investigated to realize high data rates in wireless communications. It is understood that the ordering is crucial for good performance to alleviate the effect of error propagation. However, the optimal ordering requires a higher computational complexity. To avoid this difficulty, we propose a bidirectional BLAST receiver that can mitigate the error propagation problem without the optimal ordering. It is shown that the bidirectional BLAST receiver can perform better with a lower computational complexity.
Keywords :
antenna arrays; computational complexity; radio receivers; receiving antennas; transmitting antennas; Bell laboratories layered space time architecture; bidirectional zero-forcing BLAST receiver; computational complexity; multiple receive antenna; multiple transmit antenna; wireless communications; Antennas and propagation; Bidirectional control; Computational complexity; Computer architecture; Decision feedback equalizers; Laboratories; MIMO; Receiving antennas; Transmitting antennas; Wireless communication; BLAST; Bi-directional approach; MIMO;
Journal_Title :
Signal Processing, IEEE Transactions on
DOI :
10.1109/TSP.2004.831997