Title :
Field trial results of interference cancelling equalizer (ICE) for TDMA mobile communication systems
Author :
Yoshino, Hitoshi ; Hirade, Kenkichi ; Suzuki, Hiroshi
Author_Institution :
Wireless Labs., NTT Mobile Commun. Network Inc., Kanagawa, Japan
Abstract :
This paper presents some results of field tests for our proposed interference cancelling equalizer (ICE) to assess the feasibility of path division multiple access (PDMA). PDMA exploits the different properties of propagation paths between a desired and a co-channel interference (CCI) signal to discriminate them. The focus of this paper is on the case where the desired and CCI signals actually come from the same direction, in which case an adaptive array antenna based on space division multiple access (SDMA) cannot resolve the desired and CCI signals. The field trial results show that even in a negative range of average carrier-to-interference ratio (CIR), the ICE can achieve excellent CCI cancellation performances
Keywords :
UHF radio propagation; cellular radio; cochannel interference; equalisers; error statistics; interference suppression; maximum likelihood sequence estimation; quadrature phase shift keying; time division multiple access; π/4 DQPSK; 944 MHz; BER measurement; CCI cancellation; CCI signals; CIR; MLSE; PDMA; TDMA mobile communication systems; average carrier-to-interference ratio; co-channel interference; field tests; field trial results; interference cancelling equalizer; path division multiple access; personal digital cellular system; propagation paths; Adaptive arrays; Antenna arrays; Antennas and propagation; Directive antennas; Equalizers; Ice; Interchannel interference; Interference cancellation; Radiofrequency interference; Testing;
Conference_Titel :
Communications, 1999. ICC '99. 1999 IEEE International Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-5284-X
DOI :
10.1109/ICC.1999.765414