0000000000082669

AUTHOR

Geeth P. Wijesiri

showing 3 related works from this author

Energy Harvesting-Aware Backoff Algorithms for Distributed Device-to-Device Communication

2016

Due to limited energy capacity in mobile devices, energy harvesting is regarded as a promising technology for lifetime extension in device-to-device (D2D) communication. However, medium access control (MAC) protocols designed for D2D communication intrinsically do not consider the existence of harvested energy. In this paper we study four backoff (BO) algorithms, among which one algorithm is proposed to enhance the BO selection based on energy harvesting rate and residual energy of devices. Simulations are performed in order to assess how the proposed algorithm can extend the lifetime of a D2D communication network as well as to provide fair channel access opportunities among devices.

Engineeringbusiness.industryDevice to device05 social sciences050801 communication & media studies020206 networking & telecommunicationsAccess control02 engineering and technologyTelecommunications networkLifetime extension0508 media and communications0202 electrical engineering electronic engineering information engineeringbusinessAlgorithmMobile deviceEnergy harvestingEnergy (signal processing)Computer networkCommunication channel2016 IEEE 83rd Vehicular Technology Conference (VTC Spring)
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Enabling Backoff and Eliminating Redundant Idle Period for Medium Access in LTE-U

2017

To address the burgeoning demand for mobile data, 3GPP is actively studying the capability of operating LTE in the unlicensed band, referred to as LTE-U. One of the main challenges of this approach is to maintain better coexistence between WiFi and LTE-U devices. To enable the coexistence, the listen before talk (LBT) principle has been adopted for LTE-U medium access with two flavors of mechanisms, i.e., load based equipment (LBE) and frame based equipment (FBE) access. In this paper, we consider the FBE mechanism and enhance its performance by introducing a backoff procedure for LTE devices. We investigate the original FBE mechanism defined by 3GPP and the enhanced FBE (E- FBE) mechanism fr…

Transmission delaybusiness.industryComputer scienceMobile broadbandComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS05 social sciences050801 communication & media studiesIdle0508 media and communicationsTransmission (telecommunications)0502 economics and businessListen before talk050211 marketingbusinessComputer network2017 IEEE 86th Vehicular Technology Conference (VTC-Fall)
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Frame Based Equipment Medium Access in LTE-U: Mechanism Enhancements and DTMC Modeling

2017

To address the challenge of ever-growing data rate demand and benefit from the popularity of WiFi capability in mobile phones, 3GPP is studying techniques which enable the coexistence of WiFi and LTE in the unlicensed band, known as LTEU. Two flavors of the listen before talk (LBT) principle, referred to as load based equipment (LBE) and frame based equipment (FBE), are recommended by 3GPP. In this paper, we investigate two enhanced FBE mechanisms, i.e., 1) enhanced FBE (E-FBE); and 2) backoff and idle time reduction FBE (BITR-FBE) for the purpose of improving FBE. After presenting the idea of E-FBE, we propose BITR-FBE which can further improve throughput, shorten delay and reduce energy c…

Markov chainComputer sciencebusiness.industryMarkov process020206 networking & telecommunicationsThroughput02 engineering and technologyEnergy consumptionMarkov modelReduction (complexity)symbols.namesakeTransmission (telecommunications)0202 electrical engineering electronic engineering information engineeringsymbolsbusinessHeterogeneous networkComputer networkGLOBECOM 2017 - 2017 IEEE Global Communications Conference
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