Further results on selective multiuser diversity
MSWiM '04 Proceedings of the 7th ACM international symposium on Modeling, analysis and simulation of wireless and mobile systems
Space-time block codes from orthogonal designs
IEEE Transactions on Information Theory
Opportunistic beamforming using dumb antennas
IEEE Transactions on Information Theory
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
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In this paper, we explore spatial vs. multi-user diversity tradeoffs in terms of outage capacity for a non-homogeneous cellular system with selective feedback. More precisely, we analytically derive an upper bound of the outage capacity of both a SISO and an OSTBC transmission scheme and, further, analyze some interesting trade-offs concerning the impact of terminal count and bandwidth restrictions. Such outage capacity analysis is particulary suited for the study of delay-constrained services. Numerical examples reveal that in many scenarios OSTBC is far less sensitive to impairments in the feedback channel.