Peak-to-average power ratio optimization of hybrid OFDMA and pre-coded CDMA reverse link

Shupeng Li, Sudhir Ramakrishna, Ashok Rudrapatna, Nirwan Ansari

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

1 Scopus citations

Abstract

There is an effort by the 3GPP2 (Third Generation Partnership Project 2) standards body to continue to evolve the current Evolution Data-Optimized 3G (EVDO) system into Revision C (EVDO Rev. C). The design goals include achieving much higher spectral efficiency and peak rates, at the same time providing flexibility, backward compatibility and maintaining low complexity in the base stations and mobile systems. OFDM based technologies are promising candidates for this evolution. However, one of the main disadvantages of OFDM is the high time domain peak-to-average power ratio. In this paper, we describe the underlying design philosophy for reducing the peak-to-average ratio of the EVDO Rev. C system. We show, through analyses and simulations, that the proposed hybrid OFDMA and pre-coded CDMA reverse link (RL) has a PAPR advantage over the pure OFDMA system. We also describe a joint clipping and tone reservation method and show that the resulting PAPR is comparable to that of the current EVDO systems.

Original languageEnglish (US)
Title of host publicationMilitary Communications Conference 2006, MILCOM 2006
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)1424406188, 9781424406180
DOIs
StatePublished - Jan 1 2006
EventMilitary Communications Conference 2006, MILCOM 2006 - Washington, D.C., United States
Duration: Oct 23 2006Oct 25 2006

Publication series

NameProceedings - IEEE Military Communications Conference MILCOM

Other

OtherMilitary Communications Conference 2006, MILCOM 2006
CountryUnited States
CityWashington, D.C.
Period10/23/0610/25/06

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Keywords

  • EVDO
  • OFDMA
  • PAPR

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