Title :
Co-channel interference cancelling receiver for TDMA mobile systems
Author :
Ranta, Pekka A. ; Hottinen, Ari ; Honkasalo, Zhi-Chun
Author_Institution :
NOKIA Res. Center, Helsinki, Finland
Abstract :
A method for co-channel interference cancellation in TDMA mobile systems exploiting the characteristics of mobile channels is proposed. The independently fading multipath channels provide a distinct waveform coding on each of the co-channel signals, which is a basis for signal separation in receivers. This enables the use of joint detection methods in receivers provided that accurate channel estimates can be obtained for all the cochannels. A joint detection and channel estimation algorithm for multiple co-channel signals are derived. The performance of the receiver is verified by simulations with the GSM system assuming that the strongest interferer is cancelled
Keywords :
cellular radio; channel coding; cochannel interference; encoding; estimation theory; fading; interference suppression; land mobile radio; multipath channels; radio receivers; radiofrequency interference; signal detection; time division multiple access; GSM system; TDMA mobile systems; channel estimation algorithm; co-channel interference cancelling receiver; co-channel signal; independently fading multipath channels; joint detection methods; mobile channels; multiple co-channel signals; performance; signal separation; waveform coding; Channel estimation; Interchannel interference; Interference cancellation; Multiaccess communication; Multiuser detection; Narrowband; Radiofrequency interference; Receivers; Source separation; Time division multiple access;
Conference_Titel :
Communications, 1995. ICC '95 Seattle, 'Gateway to Globalization', 1995 IEEE International Conference on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2486-2
DOI :
10.1109/ICC.1995.525131
