HARQ Feedback in Spectrum Sharing Networks
Journal article, 2012

This letter studies the throughput and the outage probability of spectrum sharing networks utilizing hybrid automatic repeat request (HARQ) feedback. We focus on the repetition time diversity and the incremental redundancy HARQ protocols where the results are obtained for both continuous and bursting communication models. The channel data transmission efficiency is investigated in the presence of both secondary user peak transmission power and primary user received interference power constraints. Finally, we evaluate the effect of secondary-primary channel state information imperfection on the performance of the secondary channel. Simulation results show that, while the throughput is not necessarily increased by HARQ, substantial outage probability reduction is achieved in all conditions.

hybrid-arq

HARQ

cognitive radio

Spectrum sharing network

channel

protocols

performance analysis

Author

Behrooz Makki

Chalmers, Signals and Systems, Kommunikationssystem, informationsteori och antenner, Communication Systems

Alexandre Graell i Amat

Chalmers, Signals and Systems, Kommunikationssystem, informationsteori och antenner, Communication Systems

Thomas Eriksson

Chalmers, Signals and Systems, Kommunikationssystem, informationsteori och antenner, Communication Systems

IEEE Communications Letters

1089-7798 (ISSN)

Vol. 16 9 1337-1340 6235077

Subject Categories

Telecommunications

DOI

10.1109/lcomm.2012.070512.112003

More information

Created

10/8/2017