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CORR
2008
Springer

The Impact of QoS Constraints on the Energy Efficiency of Fixed-Rate Wireless Transmissions

8 years 1 months ago
The Impact of QoS Constraints on the Energy Efficiency of Fixed-Rate Wireless Transmissions
Transmission over wireless fading channels under quality of service (QoS) constraints is studied when only the receiver has channel side information. Being unaware of the channel conditions, transmitter is assumed to send the information at a fixed rate. Under these assumptions, a two-state (ON-OFF) transmission model is adopted, where information is transmitted reliably at a fixed rate in the ON state while no reliable transmission occurs in the OFF state. QoS limitations are imposed as constraints on buffer violation probabilities, and effective capacity formulation is used to identify the maximum throughput that a wireless channel can sustain while satisfying statistical QoS constraints. Energy efficiency is investigated by obtaining the bit energy required at zero spectral efficiency and the wideband slope in both wideband and low-power regimes assuming that the receiver has perfect channel side information (CSI). Initially, the wideband regime with multipath sparsity is investigat...
Deli Qiao, Mustafa Cenk Gursoy, Senem Velipasalar
Added 26 Dec 2010
Updated 26 Dec 2010
Type Journal
Year 2008
Where CORR
Authors Deli Qiao, Mustafa Cenk Gursoy, Senem Velipasalar
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