Title :
Improved channel estimation with side information
Author :
Khayrallah, A.S. ; Ramésh, R. ; Bottomley, G.E. ; Koilpillai, D.
Author_Institution :
Dept. of Adv. Dev. & Res., Ericsson Inc., Research Triangle Park, NC, USA
Abstract :
In this paper, we describe a technique to incorporate side information into the channel estimation operation at the receiver in a GSM-based system. The technique has a complexity comparable to that of the standard method. Simulations indicate that in terms of coded bit error rate (BER), our technique produces gains of about 0.8 dB in a static channel, and 1 dB in non-dispersive Rayleigh and Rician fading channels. Similar gains are achieved for uncoded BER and probability of detected error. Such gains are desirable in a cellular system. They are considerable in a satellite system, where link margin is at a high premium
Keywords :
Rayleigh channels; Rician channels; cellular radio; computational complexity; digital radio; error statistics; estimation theory; fading; radio receivers; satellite communication; telecommunication channels; 0.8 dB; 1.0 dB; GSM-based system; cellular system; channel estimation; coded bit error rate; detected error; nondispersive Rayleigh fading channels; nondispersive Rician fading channels; receiver; satellite system; side information; static channel; uncoded BER; Bit error rate; Channel estimation; Convolutional codes; Equalizers; Equations; Finite impulse response filter; GSM; Nonlinear filters; Satellites; Speech;
Conference_Titel :
Vehicular Technology Conference, 1997, IEEE 47th
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-3659-3
DOI :
10.1109/VETEC.1997.600490
