Search results for "Coordinated MultiPoint"

showing 2 items of 2 documents

Partial joint processing with efficient backhauling using particle swarm optimization

2012

In cellular communication systems with frequency reuse factor of one, user terminals (UT) at the cell-edge are prone to intercell interference. Joint processing is one of the coordinated multipoint transmission techniques proposed to mitigate this interference. In the case of centralized joint processing, the channel state information fed back by the users need to be available at the central coordination node for precoding. The precoding weights (with the user data) need to be available at the corresponding base stations to serve the UTs. These increase the backhaul traffic. In this article, partial joint processing (PJP) is considered as a general framework that allows reducing the amount …

Mathematical optimizationComputer Networks and CommunicationsComputer scienceReal-time computingSignal-to-interference-plus-noise ratio02 engineering and technologycoordinated multipointPrecodingFrequency reusejoint processingBase station0203 mechanical engineering0202 electrical engineering electronic engineering information engineeringZero-forcing precodingComunicació i tecnologiaprecodingOther Electrical Engineering Electronic Engineering Information Engineeringparticle swarm optimizationComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSParticle swarm optimization020206 networking & telecommunications020302 automobile design & engineeringstochastic optimizationComputer Science ApplicationsBackhaul (telecommunications)Channel state informationSignal ProcessingTelecommunicationsStochastic optimizationEURASIP Journal on Wireless Communications and Networking
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Multi-user interference mitigation under limited feedback requirements for WCDMA systems with base station cooperation

2016

One of the techniques that has been recently identified for dealing with multi-user interference (MUI) in future communications systems is base station (BS) cooperation or joint processing. However, perfect MUI cancellation with this technique demands severe synchronization requirements, perfect and global channel state information (CSI), and an increased backhaul and signaling overhead. In this paper, we consider a more realistic layout with the aim of mitigating the MUI, where only local CSI is available at the BSs. Due to synchronization inaccuracies and errors in the channel estimation, the system becomes partially asynchronous. In the downlink of wideband code division multiple access …

Coordinated MultiPointComputer scienceReal-time computing050801 communication & media studies02 engineering and technologyCommunications systemTelecomunicacióBase station0508 media and communicationsMulti-user interference mitigationTEORIA DE LA SEÑAL Y COMUNICACIONESTelecommunications link0202 electrical engineering electronic engineering information engineeringElectrical and Electronic Engineeringbusiness.industry05 social sciences020206 networking & telecommunicationsStatistical modelBackhaul (telecommunications)TecnologiaWCDMAChannel state informationAsynchronous communicationW-CDMAbusinessComputer networkTelecommunication Systems
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