Search results for "Diversity gain"

showing 3 items of 3 documents

Performance analysis of amplify-and-forward cooperative communication systems with channel estimation errors

2008

Cooperative diversity is a transmission technique that achieves a diversity gain by using a combination of the relayed signal and the direct signal. In this paper, we study the symbol-error-rate (SER) performance of a cooperative communication system operating in an amplify-and-forward (AF) mode, where the channel state information (CSI) available at the receiver is an estimate of the channel gains with estimation errors. We derive both the probability density function and the moment generating function of the instantaneous signal-to-noise ratio (SNR) at the destination terminal. These statistical quantities are then applied to study the performance of an AF cooperative communication system…

Transmission (telecommunications)Computer scienceDiversity gainChannel state informationStatisticsCommunications systemNoise (electronics)AlgorithmComputer Science::Information TheoryCommunication channelCooperative diversity2008 11th IEEE Singapore International Conference on Communication Systems
researchProduct

BEP analysis of M-ary PSK modulation schemes over double Rice fading channels with EGC

2010

In this article, the performance of M-ary phase shift keying (PSK) modulation schemes over mobile-to-mobile (M2M) fading channels with equal gain combining (EGC) in cooperative networks is analyzed. Narrowband M2M fading channels under line-of-sight (LOS) propagation conditions are modeled as double Rice processes. A dual-hop amplify-and-forward relay network, where LOS components can exist in the transmission links between the source mobile station and the destination mobile station via K mobile relays, is studied. Here, the average bit error probability (BEP) is utilized to evaluate the performance of Mary PSK modulation schemes. A simple analytical approximation for the average BEP of M-…

Mobile radiobusiness.industryComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSData_CODINGANDINFORMATIONTHEORYTopologylaw.inventionNarrowbandTransmission (telecommunications)RelaylawDiversity gainMobile stationFadingTelecommunicationsbusinessMathematicsPhase-shift keyingThe 7th IEEE International Conference on Mobile Ad-hoc and Sensor Systems (IEEE MASS 2010)
researchProduct

Performance Analysis of M-Ary PSK Modulation Schemes over Multiple Double Rayleigh Fading Channels with EGC in Cooperative Networks

2010

This article studies the performance of M-ary phase shift keying (PSK) modulation schemes over mobile-to-mobile (M2M) fading channels with equal gain combining (EGC) in cooperative networks. The frequency-nonselective M2M fading channels are modeled assuming non-line-of-sight (NLOS) propagation conditions. Furthermore, a dual-hop amplify-and-forward relay type cooperative network is taken into consideration here. It is assumed that K diversity branches are present between the source mobile station and the destination mobile station via K mobile relays. The performance of M-ary PSK modulation schemes is analyzed by evaluating the average bit error probability (BEP). We have derived a simple …

business.industryComputer scienceComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSData_CODINGANDINFORMATIONTHEORYTopologylaw.inventionNon-line-of-sight propagationDiversity gainRelaylawModulationMobile stationComputer Science::Networking and Internet ArchitectureFadingTelecommunicationsbusinessComputer Science::Information TheoryCommunication channelPhase-shift keyingRayleigh fading2010 IEEE International Conference on Communications Workshops
researchProduct