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Multiuser scheduling is an important aspect in the performance optimisation of a wireless network as it allows multiple users to efficiently access a shared channel by exploiting multiuser diversity. For example, the 3GPP cellular standard supports multiuser scheduling in the high speed downlink packet access (HSDPA) feature. To perform efficient scheduling, channel state information (CSI) for users...
The performance of selection diversity over independent but not necessarily identically distributed Nakagami fading channels is studied. An exact closed-form expression for the probability density function of the selected channel signal-to-noise ratio is derived. Exact closed-form expressions for the corresponding cumulative distribution function, moment generating function and moments are also obtained...
An exact expression for the bit error rate of the simple transmit diversity (STD) scheme in [S. M. Alamouti, Oct. 1998] with spatially correlated Rayleigh fading and channel estimation errors is derived. Channel estimation errors result in an irreducible BER floor whereas spatial correlation by itself does not. A performance comparison of STD and maximal ratio combining is provided.
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