B.D. Hart and D.P. Taylor, "Extended MLSE receiver for the frequency-flat, fast-fading channel," IEEE Transactions on Vehicular Technology, vol. 46, no. 2, pp. 381--389, May 1997.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....with a decision rule that is independent of the fade amplitude, such as M ary PSK (MPSK) modulation. ML Detection of Coded Signals over Flat Fading Channels: Li Goldsmith. 10 3. 4 Maximum Likelihood Decoding with Perfect CSI When the channel fade amplitude ff j is known at the receiver [38], the decoder processes the deinterleaved symbols using a metric m(y j ; x j ) Gamma log p(y j jx j ; ff j ) 13) The performance of this ideal decoder yields a lower bound on the BER performance of the feedback decoders, which only know the conditional distribution of the channel state ....

B. D. Hart and D. P. Taylor, "Extended MLSE receiver for the frequency-flat, fast-fading channel," IEEE Trans. Vehic. Technol., vol. 46, pp. 381--389, May 1997.

....channel, the required random variables are Gaussian quadratic forms in c l ir ir d , and n l d , and their probability is evaluated by computing residues. The problem is a common one in Rayleigh fading channels, so we omit the details here, since the solution is well covered in the literature[5,8,9]. Suffice it that the autocorrelation of the effective pulse samples, c l ir ir d , is given by ( 1 2 1 2 1 2 1 2 1 2 E c c h l ir T h m kr T E z lT z mT d d l ir ir b m kr d r r b r d r = x x x x x x (16) A Wide Sense ....

B.D.Hart, D.P.Taylor, "Extended MLSE Receiver for the Frequency-Flat, Fast Fading Channel and Linear Modulations," in Globecom Communications Theory Mini-Conference, Singapore, 1995, pp157-161

....still unknown. Pilot 9 tones and symbols can provide CSI before detection. Joint data and channel estimation is considerably more complex, and requires a different approach altogether. The application of pilot tones and pilot symbols to frequency flat channels is well covered by the literature [3 5,16]. Here, we propose a way of extending these ideas to the general channel. The Fourier Transform of the channel response, z(t,x) with respect to delay, x, forms the Time Variant Transfer Function, T(f,t) 17] T f t z t , x , and the received signal is then given by ( y t A ....

....Thus the upper bound is tight and easily calculated only for fast fading and high SNR. The union of E = 1 error events due to the nearest neighbours of the errored symbol is asymptotically correct at high SNR s, and there is some justification that it leads to tight BER estimates at low SNR also [16,21]. With some manipulation, the pairwise probability of error for each error sequence can be calculated from (12) and (19) in the form ( P P P m s s u v u v w u v w u v ir u v w ir u v ir u v w ir kr kr u v k i L i L ir u v w ir kr kr u v w k i L u i L i u a a e e a e e , ....

B.D.Hart, D.P.Taylor, "Extended MLSE Receiver for the Frequency-Flat, Fast Fading Channel," submitted to IEEE Trans. Veh. Tech. 19

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B.D. Hart and D.P. Taylor, "Extended MLSE receiver for the frequency-flat, fast-fading channel," IEEE Transactions on Vehicular Technology, vol. 46, no. 2, pp. 381--389, May 1997.

No context found.

B. D. Hart and D. P. Taylor, "Extended MLSE receiver for the frequency -flat, fast-fading channel," IEEE Trans. Veh. Technol., vol. 46, pp. 381--389, May 1997.

No context found.

B. D. Hart and D. P. Taylor, "Extended MLSE receiver for the frequency -flat, fast-fading channel," IEEE Trans. Veh. Technol., vol. 46, pp. 381--389, May 1997.

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