Open AccessSER Optimization of OFDM Based AF Relaying in the Presence of AWGGN
Author(s) -
Dong Qin,
Yuhao Wang,
Fuhui Zhou
Publication year - 2017
Publication title -
ieee access
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.587
H-Index - 127
ISSN - 2169-3536
DOI - 10.1109/access.2017.2670138
Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation
This paper studies joint power allocation and subcarrier pairing strategies for an orthogonal frequency division multiplexing-based amplify and forward relay system. The optimization target function is symbol error rate (SER) in the context of an additive white generalized Gaussian noise (AWGGN), which encompasses numerous noise types. For instance, the familiar additive white Gaussian noise (AWGN) is just a special case of AWGGN. At a given data rate, the SER performance is optimized under total and individual power constraints, respectively. Simulation results demonstrate superior performance gap through our adaptive resource allocation approach over equal power allocation as well as fixed subcarrier pairing strategies. The impacts of practical issues on the SER performance, such as relay location and unequal power budgets at a source and a relay, are further discussed.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom