TY - GEN
T1 - Trellis coded modulation with pseudo distance in overloaded MIMO OFDM with sphere decoding
AU - Shubhi, Ilmiawan
AU - Sanada, Yukitoshi
PY - 2013/12/1
Y1 - 2013/12/1
N2 - Efficient detection schemes for an overloaded multiple-input multiple-output (MIMO) system has been investigated recently. In previous literature, it has been shown that trellis coded modulation (TCM) can enhance system capability to separate signal streams at detection process in MIMO systems. However, the computational complexity remains high as a maximum likelihood detection (MLD) algorithm is used in the scheme. Thus, a sphere decoding (SD) algorithm with a pseudo distance (PD) is proposed in this paper. It is shown that the proposed scheme can reduce the number of distance calculations by about 98% for the transmission of 3 signal streams. In addition, the proposed scheme improves the bit error performance by about 2dB at the bit error rate of 10-2.
AB - Efficient detection schemes for an overloaded multiple-input multiple-output (MIMO) system has been investigated recently. In previous literature, it has been shown that trellis coded modulation (TCM) can enhance system capability to separate signal streams at detection process in MIMO systems. However, the computational complexity remains high as a maximum likelihood detection (MLD) algorithm is used in the scheme. Thus, a sphere decoding (SD) algorithm with a pseudo distance (PD) is proposed in this paper. It is shown that the proposed scheme can reduce the number of distance calculations by about 98% for the transmission of 3 signal streams. In addition, the proposed scheme improves the bit error performance by about 2dB at the bit error rate of 10-2.
KW - Overloaded MIMO
KW - Pseudo Distance
KW - Sphere Decoding
KW - Trellis-Coded Modulation
UR - http://www.scopus.com/inward/record.url?scp=84894180049&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84894180049&partnerID=8YFLogxK
U2 - 10.1109/ISPACS.2013.6704617
DO - 10.1109/ISPACS.2013.6704617
M3 - Conference contribution
AN - SCOPUS:84894180049
SN - 9781467363617
T3 - ISPACS 2013 - 2013 International Symposium on Intelligent Signal Processing and Communication Systems
SP - 579
EP - 584
BT - ISPACS 2013 - 2013 International Symposium on Intelligent Signal Processing and Communication Systems
T2 - 2013 21st International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2013
Y2 - 12 November 2013 through 15 November 2013
ER -