Distributed cognitive multiple access networks : power control, scheduling and multiuser diversity

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review

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Author(s)

Detail(s)

Original languageEnglish
Title of host publication2013 IEEE International Symposium on Information Theory, ISIT 2013
PublisherIEEE
Pages1665-1669
ISBN (Electronic)978-1-4799-0446-4
Publication statusPublished - Jul 2013
Externally publishedYes

Publication series

NameIEEE International Symposium on Information Theory - Proceedings
ISSN (Print)2157-8095

Conference

Title2013 IEEE International Symposium on Information Theory (ISIT 2013)
PlaceTürkiye
CityIstanbul
Period7 - 12 July 2013

Abstract

This paper studies optimal distributed power allocation and scheduling policies (DPASPs) for distributed total power and interference limited (DTPIL) cognitive multiple access networks in which secondary users (SU) independently perform power allocation and scheduling tasks using their local knowledge of secondary transmitter secondary base-station (STSB) and secondary transmitter primary base-station (STPB) channel gains. In such networks, transmission powers of SUs are limited by an average total transmission power constraint and by a constraint on the average interference power that SUs cause to the primary base-station. We first establish the joint optimality of water-filling power allocation and threshold-based scheduling policies for DTPIL networks. We then show that the secondary network throughput under the optimal DPASP scales according to 1/enh log log (N), where nh is a parameter obtained from the distribution of STSB channel power gains and N is the total number of SUs. From a practical point of view, our results signify the fact that distributed cognitive multiple access networks are capable of harvesting multiuser diversity gains without employing centralized schedulers and feedback links as well as without disrupting primary's quality-of-service (QoS).  

Citation Format(s)

Distributed cognitive multiple access networks : power control, scheduling and multiuser diversity. / Nekouei, Ehsan; Inaltekin, Hazer; Dey, Subhrakanti.

2013 IEEE International Symposium on Information Theory, ISIT 2013. IEEE, 2013. p. 1665-1669 6620510 (IEEE International Symposium on Information Theory - Proceedings).

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review