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Multiuser diversity (MUD) can be exploited in multiuser networks to improve performance. In this paper, the outage probability (OP) of amplify-and-forward relaying multiuser networks with transmit antenna selection (TAS) over N-Nakagami fading channels is investigated. Exact closed-form OP expressions are derived for two TAS schemes. These expressions are used to evaluate the effect of the power allocation on the OP. Monte Carlo simulation is used to verify the analysis. The results show that MUD has a significant effect on the OP. [ABSTRACT FROM AUTHOR]

Due to mobile-to-mobile (M2M) communication unpredictability and difficulty in securing reliable channels, transmission of video over M2M networks is challenging. Cooperative communication and transmit antenna selection are two different techniques which can benefit from path diversity for robust video communication. In this paper, the outage probability (OP) performance of multi-relay-based M2M video transmission networks with transmit antenna selection over N-Nakagami fading channels is investigated. The exact closed-form expressions for OP of optimal and suboptimal TAS schemes are derived. The power allocation problem is formulated for performance optimization. Then the OP performance under different conditions is evaluated through numerical simulations to verify the analysis. The simulation results showed that the power-allocation parameter has a significant effect on the OP performance. [ABSTRACT FROM AUTHOR]

The outage probability (OP) performance of decode-and-forward relaying mobile-to-mobile system with transmit antenna selection (TAS) overN-Nakagami fading channels is investigated in this paper. The exact closed-form expressions for OP of optimal and suboptimal TAS schemes are derived. The power allocation problem is formulated for performance optimisation. Then the OP performance under different conditions is evaluated through numerical simulations to verify the analysis. The simulation results showed that optimal TAS scheme has a better OP performance than suboptimal TAS scheme, and the power-allocation parameter has an important influence on the OP performance. [ABSTRACT FROM PUBLISHER]

The outage probability (OP) performance of transmit antenna selection (TAS) in a decode-and-forward relaying mobile-to-mobile system with relay selection overN-Nakagami fading channels is investigated. Exact closed-form expressions for the OP of two TAS schemes are derived, and the optimal power allocation optimisation problem is formulated. The OP performance is evaluated via Monte Carlo simulation to verify the analysis. The results obtained show that the optimal TAS scheme has better performance than the suboptimal TAS scheme, but the performance gap between these techniques decreases as the number of source antennas increases. [ABSTRACT FROM AUTHOR]

The outage probability (OP) performance of multiple-relay-based incremental hybrid decode-amplify-forward (IHDAF) relaying mobile-to-mobile (M2M) networks with transmit antenna selection (TAS) over N-Nakagami fading channels is investigated in this paper. The closed-form expressions for approximate OP of the optimal and suboptimal TAS schemes are derived. The power allocation problem is formulated for performance optimization. Then the OP performance under different conditions is evaluated through numerical simulations to verify the analysis. The simulation results showed that optimal TAS scheme has a better OP performance than suboptimal TAS scheme; the power-allocation parameter has an important influence on the OP performance. [ABSTRACT FROM AUTHOR]

The outage probability (OP) performance of multiple-relay incremental-selective decode-and-forward (ISDF) relaying mobile-to-mobile (M2M) sensor networks with transmit antenna selection (TAS) over N-Nakagami fading channels is investigated. Exact closed-form OP expressions for both optimal and suboptimal TAS schemes are derived. The power allocation problem is formulated to determine the optimal division of transmit power between the broadcast and relay phases. The OP performance under different conditions is evaluated via numerical simulation to verify the analysis. These results show that the optimal TAS scheme has better OP performance than the suboptimal scheme. Further, the power allocation parameter has a significant influence on the OP performance. [ABSTRACT FROM AUTHOR]