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Type-based multiple-access (TBMA) is a bandwidth efficient transmission scheme for decentralized estimation in wireless sensor networks (WSNs) over non-orthogonal multiple-access channels, whereas its performance degrades severely in zero-mean fading channels. In this paper, we improve its performance in the fading channels by using more resources for transmitting each type, which is named as TBMA...
The operation of switching in selection diversity combining produces transients that increase the system outage. Due to this, the switching rate plays an important role in selection diversity system design. Yet published results on the switching rates of selection diveristy combining are scarce. No published work considers correlated diversity channels. In this paper, the switching rate of a correlated...
Transients generated by the switching in selection diversity combining cause receiver ldquodead timerdquo and therefore increase the system outage. For this reason, the switching rate is an important parameter in selection diversity system design. Yet, there are few published results regarding the switching rates of selection diversity combining. All published work considers noiseless diversity systems;...
Switching rate is an important parameter in selection diversity receiver design because the switching transients increase the system outage. An exact closed-form solution for the switching rate of dual selection diversity in kappa-mu and alpha-mu distributed fadings is derived. Independent and identically distributed (i.i.d.) kappa-mu and alpha-mu fading channels are considered. The switching rate...
In this paper, we design the near optimal transmission codebook for decentralized estimation in wireless sensor networks with uniform quantizations and digital communications over orthogonal Rayleigh fading channels. We start from deriving the maximum likelihood estimator (MLE) for arbitrary transmission codebook with known and unknown channel state information (CSI) at the fusion center (FC). Because...
An analytical expression for the switching rate of a dual branch selection diversity combiner in kappa-mu and alpha-mu distributed fadings is derived. Independent and identically distributed (i.i.d.) kappa-mu as well as alpha-mu fading channels are considered. The switching rates for dual i.i.d. Rayleigh, Rician and Nakagami-m fading channels are special cases of the switching rate for dual i.i.d...
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