TY - JOUR
T1 - Cooperative In-Home Power Line Communication
T2 - Analyses Based on a Measurement Campaign
AU - Facina, Michelle S.P.
AU - Latchman, Haniph A.
AU - Poor, H. Vincent
AU - Ribeiro, Moises V.
N1 - Funding Information:
The authors thank CNPq, CAPES, FAPEMIG, FINEP, P&D ANEEL-CEMIG, INERGE, Smarti9 Ltda., and the Fulbright Commission for their financial support. The associate editor coordinating the review of this paper and approving it for publication was C. Ling.
Publisher Copyright:
© 2015 IEEE.
PY - 2016/2/1
Y1 - 2016/2/1
N2 - This work focuses on analyses of cooperative protocols to enhance the performance of power line communication systems. Based on a measurement campaign and considering a sum power constraint, achievable data rates for amplify-and-forward (AF) and decode-and-forward (DF) protocols are analyzed. Similar investigations are performed for the maximum data rates attained using Hermitian-symmetric orthogonal frequency division multiplexing (HS-OFDM) together with equal gain combining (EGC), selection combining (SC) and maximal ratio combining (MRC) techniques. The influences of optimally and uniformly allocated transmission power and frequency bandwidth are are also analyzed and the efficiency of combination before and after equalization is compared. Results show that the relative distances among source, relay and destination nodes significantly impact system performance. Also, they reveal a range of total transmission power and bandwidth in which benefits can be verified. Among combining techniques, MRC and SC present similar results, but MRC offers a slightly better performance. In relation to computational complexity, SC is the most favorable. Maximum data rate analyses of HS-OFDM with frequency domain equalization based on zero forcing and minimum mean square error criteria show that the former scheme offers almost the same performance as the latter. Furthermore, it is shown that equalization after combination is more advantageous.
AB - This work focuses on analyses of cooperative protocols to enhance the performance of power line communication systems. Based on a measurement campaign and considering a sum power constraint, achievable data rates for amplify-and-forward (AF) and decode-and-forward (DF) protocols are analyzed. Similar investigations are performed for the maximum data rates attained using Hermitian-symmetric orthogonal frequency division multiplexing (HS-OFDM) together with equal gain combining (EGC), selection combining (SC) and maximal ratio combining (MRC) techniques. The influences of optimally and uniformly allocated transmission power and frequency bandwidth are are also analyzed and the efficiency of combination before and after equalization is compared. Results show that the relative distances among source, relay and destination nodes significantly impact system performance. Also, they reveal a range of total transmission power and bandwidth in which benefits can be verified. Among combining techniques, MRC and SC present similar results, but MRC offers a slightly better performance. In relation to computational complexity, SC is the most favorable. Maximum data rate analyses of HS-OFDM with frequency domain equalization based on zero forcing and minimum mean square error criteria show that the former scheme offers almost the same performance as the latter. Furthermore, it is shown that equalization after combination is more advantageous.
KW - Cooperative communication
KW - achievable data rate
KW - amplify-andforward
KW - combining techniques
KW - decode-and-forward
KW - maximum data rate
KW - power line communication
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U2 - 10.1109/TCOMM.2015.2499744
DO - 10.1109/TCOMM.2015.2499744
M3 - Article
AN - SCOPUS:84962346096
SN - 1558-0857
VL - 64
SP - 778
EP - 789
JO - IEEE Transactions on Communications
JF - IEEE Transactions on Communications
IS - 2
M1 - 7327147
ER -