Near-optimum power control for two-Tier SIMO uplink under power and interference constraints

Baris Yuksekkaya, Hazer Inaltekin, Cenk Toker, Halim Yanikomeroglu

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

Abstract

This paper considers optimization of transmit power allocation in a two-Tier single input multiple output uplink network. The proposed system model is general enough to cover both emerging heterogeneous network (HetNet) architectures and cognitive radio (CR) networks. The first tier, which is assumed to have one user, represents a macrocell (or a primary user network) and the second tier represents a femtocell (or a secondary user network) in a HetNet (or a CR network). Second tier users share the same resources with the first tier user and they form a single input multiple output multiple access channel to their intended base station while causing interference to the first tier user. Near-optimum allocation of transmission powers maximizing the aggregate communication rate under individual transmission power constraints and a constraint on the total interference power at the first tier user is obtained by considering low-complexity signal decoders without interference cancelation at the second tier base station. It is shown that the power allocation is a modified version of the classical water-filling algorithm.

Original languageEnglish
Title of host publication2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages645-649
Number of pages5
ISBN (Electronic)9781479919314, 9781479919307
DOIs
Publication statusPublished - 2015
Externally publishedYes
Event16th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2015 - Stockholm, Sweden
Duration: 28 Jun 20151 Jul 2015

Publication series

Name
ISSN (Print)1948-3244
ISSN (Electronic)1948-3252

Conference

Conference16th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2015
CountrySweden
CityStockholm
Period28/06/151/07/15

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