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|Title:||On orthogonal signaling over the slow nonselective Rician fading channel with unknown specular component|
|Authors:||Kam, Pooi Yuen|
|Source:||Kam, Pooi Yuen (1993-06). On orthogonal signaling over the slow nonselective Rician fading channel with unknown specular component. IEEE Transactions on Communications 41 (6) : 817-819. ScholarBank@NUS Repository.|
|Abstract:||Orthogonal signaling over the slow nonselective Rician channel is considered. Previous receiver designs have all assumed the amplitude and phase of the specular component of the received carrier to be known completely, but this assumption is entirely unrealistic. The problem is reformulated here with unknown random amplitude and phase of the specular component. The optimum maximum likelihood receiver is obtained for equally likely equal-energy orthogonal signals, and is identical to the quadratic receiver for purely unknown phase channel and the pure Rayleigh fading channel. The error probability performance is analyzed for a fixed known specular amplitude. When specialized to the binary signaling case, this error probability result shows a performance that is very close to and which, in fact, asymptotically approaches that of the conventional coherent-specular-component case for high SNR. Thus, knowledge of the specular component phase is not important to the optimum receiver.|
|Source Title:||IEEE Transactions on Communications|
|Appears in Collections:||Staff Publications|
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