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Title: Cognitive relay networks with energy and mutual-information accumulation
Cognitive radio networks, a.k.a. dynamic spectrum access networks, offer a promising solution to the problems of spectrum scarcity and under-utilization. In this paper, we consider two single-user links: primary and secondary links. To increase secondary user (SU) transmission opportunities and increase primary user (PU) throughput, we consider a cognitive relay network where a SU relays PU packets that are unsuccessfully received at the primary receiver (PR). At the PR side, two protocols are suggested: i) energy accumulation (EA), and ii) mutual-information accumulation (MIA). The average stable throughput of the secondary link is derived under these protocols for a specific throughput selected by the primary link. Results show that EA and MIA can significantly improve the secondary throughput compared with the no accumulation scenario, especially under extreme environment.  more » « less
Award ID(s):
1811720 1802710 1811497
NSF-PAR ID:
10087308
Author(s) / Creator(s):
; ; ; ; ;
Date Published:
Journal Name:
IEEE INFOCOM 2018 - IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS)
Page Range / eLocation ID:
640 to 644
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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