University of Hertfordshire

By the same authors

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Original languageEnglish
Number of pages5
StatePublished - 2011
EventThe 12th Annual Post Graduate Symposium on the Convergence of Telecommunications, Networking and Broadcasting 2011 - Liverpool, United Kingdom

Conference

ConferenceThe 12th Annual Post Graduate Symposium on the Convergence of Telecommunications, Networking and Broadcasting 2011
Abbreviated titlePGNet2011
CountryUnited Kingdom
CityLiverpool
Period27/06/1128/06/11
Internet address

Abstract

he design of systems with enhanced quality of service (QoS) and improved power efficiency has evolved into an intensive research area in wired and wireless communications engineering. Orthogonal frequency division multiplexing (OFDM) has been proven to have the potential to achieve high data rates, adapt to severe channel conditions and exhibit spectral efficiency; this has gained its popular support in the design industry, especially for fourth generation (4G) systems. However, the high peak to mean envelope power ratio (PMEPR) exhibited by OFDM signals require linear operation of analog devices, with the associated trade-off of poor power efficiency. Several methods to reduce this PMEPR problem have been effectively researched while revealing the shortcomings. In this study we recognize the need to present the effect of OFDM system parameters on the behaviour of the PMEPR. In order to provide a basis for systematic selection of OFDM design parameters for PMEPR mitigation, we first study the reaction of the PMEPR to OFDM design parameters, we then analyse the effect of OFDM design parameters on the shortcomings of the PMEPR-limiting clipping technique.

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