Performance Evaluation of OFDM Amplify-and-Forward Relay System with Subcarrier Permutation

Enis KOCAN; Milica PEJANOVIC-DJURISIC; Diomidis S. MICHALOPOULOS; George K. KARAGIANNIDIS

doi:10.1587/transcom.E93.B.1216

Performance Evaluation of OFDM Amplify-and-Forward Relay System with Subcarrier Permutation

Enis KOCAN, Milica PEJANOVIC-DJURISIC, Diomidis S. MICHALOPOULOS, George K. KARAGIANNIDIS

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We perform error probability analysis of the uncoded OFDM fixed gain Amplify-and-Forward (AF) relaying system with subcarrier permutation (SCP). Two SCP schemes, named: the best-to-best SCP (BTB SCP) and the best-to-worst SCP (BTW SCP) are considered. Closed-form expressions for the bit error rate (BER) of the above SCP methods are derived. Numerical results manifest that these SCP schemes may outperform one another, depending on the average channel conditions of the links involved. That is, BTB SCP is better at low signal-to-noise ratio (SNR) values, while BTW SCP prevails in the medium and high SNR regime. Thus, it could be concluded that OFDM AF relaying systems may switch from the BTB SCP to BTW SCP in order to achieve optimum BER performance. Moreover, using the derived end-to-end SNR probability density functions (PDF), tight upper bounds for the ergodic capacities of both SCP schemes are obtained.

Publication: IEICE TRANSACTIONS on Communications Vol.E93-B No.5 pp.1216-1223

Publication Date: 2010/05/01

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Online ISSN: 1745-1345

DOI: 10.1587/transcom.E93.B.1216

Type of Manuscript: PAPER

Category: Wireless Communication Technologies

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Enis KOCAN, Milica PEJANOVIC-DJURISIC, Diomidis S. MICHALOPOULOS, George K. KARAGIANNIDIS, "Performance Evaluation of OFDM Amplify-and-Forward Relay System with Subcarrier Permutation" in IEICE TRANSACTIONS on Communications, vol. E93-B, no. 5, pp. 1216-1223, May 2010, doi: 10.1587/transcom.E93.B.1216.
Abstract: We perform error probability analysis of the uncoded OFDM fixed gain Amplify-and-Forward (AF) relaying system with subcarrier permutation (SCP). Two SCP schemes, named: the best-to-best SCP (BTB SCP) and the best-to-worst SCP (BTW SCP) are considered. Closed-form expressions for the bit error rate (BER) of the above SCP methods are derived. Numerical results manifest that these SCP schemes may outperform one another, depending on the average channel conditions of the links involved. That is, BTB SCP is better at low signal-to-noise ratio (SNR) values, while BTW SCP prevails in the medium and high SNR regime. Thus, it could be concluded that OFDM AF relaying systems may switch from the BTB SCP to BTW SCP in order to achieve optimum BER performance. Moreover, using the derived end-to-end SNR probability density functions (PDF), tight upper bounds for the ergodic capacities of both SCP schemes are obtained.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.1216/_p

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@ARTICLE{e93-b_5_1216,
author={Enis KOCAN, Milica PEJANOVIC-DJURISIC, Diomidis S. MICHALOPOULOS, George K. KARAGIANNIDIS, },
journal={IEICE TRANSACTIONS on Communications},
title={Performance Evaluation of OFDM Amplify-and-Forward Relay System with Subcarrier Permutation},
year={2010},
volume={E93-B},
number={5},
pages={1216-1223},
abstract={We perform error probability analysis of the uncoded OFDM fixed gain Amplify-and-Forward (AF) relaying system with subcarrier permutation (SCP). Two SCP schemes, named: the best-to-best SCP (BTB SCP) and the best-to-worst SCP (BTW SCP) are considered. Closed-form expressions for the bit error rate (BER) of the above SCP methods are derived. Numerical results manifest that these SCP schemes may outperform one another, depending on the average channel conditions of the links involved. That is, BTB SCP is better at low signal-to-noise ratio (SNR) values, while BTW SCP prevails in the medium and high SNR regime. Thus, it could be concluded that OFDM AF relaying systems may switch from the BTB SCP to BTW SCP in order to achieve optimum BER performance. Moreover, using the derived end-to-end SNR probability density functions (PDF), tight upper bounds for the ergodic capacities of both SCP schemes are obtained.},
keywords={},
doi={10.1587/transcom.E93.B.1216},
ISSN={1745-1345},
month={May},}

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TY - JOUR
TI - Performance Evaluation of OFDM Amplify-and-Forward Relay System with Subcarrier Permutation
T2 - IEICE TRANSACTIONS on Communications
SP - 1216
EP - 1223
AU - Enis KOCAN
AU - Milica PEJANOVIC-DJURISIC
AU - Diomidis S. MICHALOPOULOS
AU - George K. KARAGIANNIDIS
PY - 2010
DO - 10.1587/transcom.E93.B.1216
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2010
AB - We perform error probability analysis of the uncoded OFDM fixed gain Amplify-and-Forward (AF) relaying system with subcarrier permutation (SCP). Two SCP schemes, named: the best-to-best SCP (BTB SCP) and the best-to-worst SCP (BTW SCP) are considered. Closed-form expressions for the bit error rate (BER) of the above SCP methods are derived. Numerical results manifest that these SCP schemes may outperform one another, depending on the average channel conditions of the links involved. That is, BTB SCP is better at low signal-to-noise ratio (SNR) values, while BTW SCP prevails in the medium and high SNR regime. Thus, it could be concluded that OFDM AF relaying systems may switch from the BTB SCP to BTW SCP in order to achieve optimum BER performance. Moreover, using the derived end-to-end SNR probability density functions (PDF), tight upper bounds for the ergodic capacities of both SCP schemes are obtained.
ER -