Adaptive Modulation over Nakagami Fading Channels
Wireless Personal Communications: An International Journal
Wireless Communications over Mimo Channels: Applications to Cdma And Multiple Antenna Systems
Wireless Communications over Mimo Channels: Applications to Cdma And Multiple Antenna Systems
On the capacity of Rayleigh fading cooperative systems under adaptive transmission
IEEE Transactions on Wireless Communications
IEEE Transactions on Wireless Communications
Power allocation in wireless multi-user relay networks
IEEE Transactions on Wireless Communications
Exact symbol error probability of a Cooperative network in a Rayleigh-fading environment
IEEE Transactions on Wireless Communications
Distributed space-time coding for regenerative relay networks
IEEE Transactions on Wireless Communications
Opportunistic cooperation by dynamic resource allocation
IEEE Transactions on Wireless Communications
Cooperative Communications with Outage-Optimal Opportunistic Relaying
IEEE Transactions on Wireless Communications
Selection Cooperation in Multi-Source Cooperative Networks
IEEE Transactions on Wireless Communications
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
Capacity bounds and power allocation for wireless relay channels
IEEE Transactions on Information Theory
Cooperative communication in wireless networks
IEEE Communications Magazine
A simple Cooperative diversity method based on network path selection
IEEE Journal on Selected Areas in Communications
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In this paper, opportunistic cooperative amplify-and-forward networks in conjunction with three different adaptive policies, namely optimal simultaneous power and rate adaptation (OPRA), constant power with optimal rate adaptation (OPA) and truncated channel inversion with fixed rate (TIFR), are investigated and compared in terms of Rayleigh channel capacity where the source adapts its rate and/or power level according to channel conditions while the best relay simply amplifies and then forwards the received signals. Furthermore, the effect of diversity combining on the network is studied by investigating two cases of maximal ratio combining (MRC) and selection combining (SC) equipped at the destination. To this end, the mathematically tractable form of the upper and lower bound of the end-to-end effective signal-to-noise ratio (SNR) is provided and then used to derive the closed-form expression of the Shannon capacity. Our results are verified through comparison with Monte Carlo simulations in some representative scenarios where we also illustrate that, among them, for an arbitrary number of cooperative relays, OPRA slightly outperforms ORA, which, in turn, outperforms TIFR.