Successive cancellation of adjacent channel signals in FDMA/TDMA digital mobile radio systems

Capacity and signal quality can be improved in mobile radio systems by designing digital receivers with interference mitigation capability. In this paper, coherent MLSE receivers based on successive cancellation of adjacent channel interference in FDMA/TDMA mobile radio systems are developed. The proposed technique requires estimation of impulse response of the desired and adjacent channels, these are obtained via a novel approach employing pulse shaping information and band extrapolation. The receiver is simulated for the GSM digital cellular system under Rayleigh and Rician fading. The results show substantial improvements in bit error rate in interference limited environments.

[1]  David D. Falconer,et al.  Suppression of adjacent-channel, cochannel, and intersymbol interference by equalizers and linear combiners , 1994, IEEE Trans. Commun..

[2]  S. Sampei,et al.  Rejection method of adjacent channel interference for digital land mobile communications , 1986 .

[3]  Sandeep Chennakeshu,et al.  Mobile-satellite systems: a perspective on technology and trends , 1996, Proceedings of Vehicular Technology Conference - VTC.

[4]  Someshwar C. Gupta,et al.  Performance of Partial Response CPM in the Presence of Adjacent Channel Interference and Gaussian Noise , 1986, IEEE Trans. Commun..

[5]  G. Ungerboeck,et al.  Adaptive Maximum-Likelihood Receiver for Carrier-Modulated Data-Transmission Systems , 1974, IEEE Trans. Commun..

[6]  Peter Jung.  Laurent's representation of binary digital continuous phase modulated signals with modulation index 1/2 revisited , 1994, IEEE Trans. Commun..

[7]  S. Verdu.  Optimum multiuser signal detection (Ph.D. Abstr.) , 1985, IEEE Trans. Inf. Theory.

[8]  Gregory E. Bottomley,et al.  Adaptive MLSE equalization forms for wireless communications , 1996 .

[9]  Gregory E. Bottomley,et al.  Jakes fading model revisited , 1993 .

[10]  Pierre A. Laurent,et al.  Exact and Approximate Construction of Digital Phase Modulations by Superposition of Amplitude Modulated Pulses (AMP) , 1986, IEEE Trans. Commun..

[11]  S. Golestaneh,et al.  The effect of adjacent channel interference on the capacity of FDMA cellular systems , 1994 .