Title :
HIPERLAN-like turbo coded multi-user detection assisted OFDM based interactive video telephony
Author :
Cherriman, P. ; Münster, M. ; Hanzo, L.
Author_Institution :
Dept. of Electron. & Comput. Sci., Southampton Univ., UK
fDate :
6/23/1905 12:00:00 AM
Abstract :
Multiuser detection assisted, multiple transmit antenna based OFDM arrangements are studied in the context of HIPERLAN 2-like systems. It is demonstrated that the system user capacity can be improved with the aid of unique spatial user signatures, hence supporting a multiplicity of users. The maximum likelihood sequence estimation (MLSE) detection algorithm outperformed the minimum mean square error (MMSE) scheme by about 5 dB in terms of the required signal-to-noise ratio (SNR) and this performance gain manifested itself also in terms of the system improved video performance.
Keywords :
OFDM modulation; antenna arrays; interactive video; least mean squares methods; modulation coding; multiuser channels; signal detection; transmitting antennas; turbo codes; videotelephony; 5 dB; HIPERLAN 2-like systems; HIPERLAN-like turbo coded multiuser detection; MLSE detection algorithm; OFDM based interactive video telephony; maximum likelihood sequence estimation detection algorithm; multiuser detection assisted multiple transmit antenna based OFDM; spatial user signatures; user capacity; Detection algorithms; Maximum likelihood detection; Maximum likelihood estimation; Mean square error methods; Multiuser detection; OFDM; Signal to noise ratio; Telephony; Transmitting antennas; Turbo codes;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956561
