TY - GEN
T1 - Downlink multiuser capacity of interference-limited MIMO systems
AU - Dai, Huaiyu
AU - Molisch, Andreas F.
AU - Poor, H. Vincent
PY - 2002
Y1 - 2002
N2 - In a companion paper [4], space-time layered architectures (BLAST) and turbo coding/processing techniques, which are effective for single-link transmission, are combined with multiuser detection (MUD) methods for combating intercell interference. It is shown that, depending on the channel configuration, linear MMSE or successive interference cancellation (SIC) can be the preferable MUD method. Based on this fact, an adaptive scheme is developed. In this paper, the downlink capacity of interference limited multiple-input multiple-output (MIMO) cellular systems is investigated. It is found that the obtained MUD capacity is excellent in high to medium SIR scenario, but still deteriorates in strong interference environments, leaving ample room for possible improvement through other techniques. The performance of the proposed adaptive MUD scheme in a standard cellular environment, both in the nonline-of-sight (NLOS) and the line-of-sight (LOS) case, is simulated, and the advantages over the standard V-BLAST scheme are quantified.
AB - In a companion paper [4], space-time layered architectures (BLAST) and turbo coding/processing techniques, which are effective for single-link transmission, are combined with multiuser detection (MUD) methods for combating intercell interference. It is shown that, depending on the channel configuration, linear MMSE or successive interference cancellation (SIC) can be the preferable MUD method. Based on this fact, an adaptive scheme is developed. In this paper, the downlink capacity of interference limited multiple-input multiple-output (MIMO) cellular systems is investigated. It is found that the obtained MUD capacity is excellent in high to medium SIR scenario, but still deteriorates in strong interference environments, leaving ample room for possible improvement through other techniques. The performance of the proposed adaptive MUD scheme in a standard cellular environment, both in the nonline-of-sight (NLOS) and the line-of-sight (LOS) case, is simulated, and the advantages over the standard V-BLAST scheme are quantified.
KW - Adaptive detection
KW - BLAST
KW - Co-channel interference
KW - MIMO systems
KW - Multiuser detection
KW - Turbo processing
UR - http://www.scopus.com/inward/record.url?scp=0242323389&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0242323389&partnerID=8YFLogxK
U2 - 10.1109/PIMRC.2002.1047342
DO - 10.1109/PIMRC.2002.1047342
M3 - Conference contribution
AN - SCOPUS:0242323389
SN - 0780375890
SN - 9780780375895
T3 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
SP - 849
EP - 853
BT - 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2002
T2 - 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2002
Y2 - 15 September 2002 through 18 September 2002
ER -