Open AccessEnergy efficient OFDM transceiver design based on traffic tracking and adaptive bandwidth adjustment
Author(s) -
Jingjing Zhang,
Junqiang Hu,
Dayou Qian,
Ting Wang
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.00b983
Subject(s) - transceiver , computer science , orthogonal frequency division multiplexing , bandwidth (computing) , electronic engineering , energy consumption , efficient energy use , modulation (music) , energy (signal processing) , telecommunications , electrical engineering , wireless , engineering , channel (broadcasting) , physics , quantum mechanics , acoustics
This paper proposes a novel scheme to reduce energy consumption of digital transceivers with OFDM as the modulation scheme. The energy consumption of transceivers is saved based on two key techniques: 1) adaptively tune the bandwidth and sampling rate of the OFDM signal; 2) selectively power off individual block of parallel modules in the transceiver. Performance analysis illustrate that the newly designed transceiver consumes a significantly less amount of energy as compared to the conventional transceiver.