Title :
Capacity analysis of time-varying flat-fading channels using particle methods
Author :
Taylor, Stephen ; Sadeghi, Parastoo
Author_Institution :
Res. Sch. of Inf. Sci. & Eng., Australian Nat. Univ., Canberra, ACT
Abstract :
We consider the problem of computing the information rate of a first-order approximation of Clarkepsilas time-varying flat-fading channel model, and apply the recently-developed particle-filter method for estimating the information rate of a continuous-valued channel with memory. We compare the results with various bounds, both classic and recent, and we find that the information rates obtained using the particle method fall between recently-established tight bounds. We also investigate the effects of the numbers of particles and of simulated time-steps on the estimated information rate. Such results are useful in providing an upper bound on the data rates achievable in a wireless communication system.
Keywords :
fading channels; particle filtering (numerical methods); radiocommunication; time-varying channels; Clarke time-varying flat-fading channel model; capacity analysis; continuous-valued channel; information rate estimation; particle-filter method; wireless communication system; Australia; Computational modeling; Computer networks; Fading; Gaussian channels; Information analysis; Information rates; Telecommunication computing; Upper bound; Wireless communication; channel capacity; fading channel; information rate; particle method; wireless communications;
Conference_Titel :
Telecommunication Networks and Applications Conference, 2007. ATNAC 2007. Australasian
Conference_Location :
Christchurch
Print_ISBN :
978-1-4244-1557-1
Electronic_ISBN :
978-1-4244-1558-8
DOI :
10.1109/ATNAC.2007.4665274
