Coordinated resource allocation in centralized radio access networks with dynamic downlink/uplink reconfiguration

Dalin Zhu, Ming Lei, Andrea Goldsmith

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

We propose and evaluate a novel coordinated resource allocation scheme in Time Division Duplex (TDD) systems where the downlink/uplink (DL/UL) resources are allocated dynamically for asymmetric traffic adaptation. To eliminate the cross-subframe co-channel interference (CCI), we first formulate the dynamic reconfiguration problem as the cooperative control that operates on disjoint cell clusters. With this setup, the DL/UL configurations are no longer determined with respect to an individual cell, but are chosen in form of the cluster-specific configuration patterns (CPs) with optimized performance metrics. Additionally, a novel CCI cancelation (CCIC) method, termed cross-subframe coordinated scheduling/beamforming (CCS/CCB) is incorporated in the proposed reconfiguration approach. By jointly designing and optimizing the beamforming vectors and the traffic scheduling, the residual intra-cluster CCI can be mitigated.

Original languageEnglish (US)
Title of host publication2013 IEEE Global Communications Conference, GLOBECOM 2013
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3625-3630
Number of pages6
ISBN (Print)9781479913534
DOIs
StatePublished - 2013
Externally publishedYes
Event2013 IEEE Global Communications Conference, GLOBECOM 2013 - Atlanta, GA, United States
Duration: Dec 9 2013Dec 13 2013

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference

Other

Other2013 IEEE Global Communications Conference, GLOBECOM 2013
CountryUnited States
CityAtlanta, GA
Period12/9/1312/13/13

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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