Title :
Comments on “On the Performance Analysis of Multirelay Cooperative Diversity Systems With Channel Estimation Errors”
Author_Institution :
Dept. of Inf. Eng., I-Shou Univ., Kaohsiung, Taiwan
Abstract :
Asymptotic error probabilities for conventional and opportunistic relaying with channel estimation errors derived by Amin are erroneous. Therefore, this commentary presents the new asymptotic expressions of error probability. However, the developed optimal power allocation rules and the diversity order are unaffected by these errors in the formulations.
Keywords :
channel estimation; cooperative communication; diversity reception; error statistics; relays; asymptotic error probability; asymptotic expression; channel estimation error; multirelay cooperative diversity system; opportunistic relaying; optimal power allocation rule; Binary phase shift keying; Bit error rate; Channel estimation; Error probability; Performance analysis; Resource management; Signal to noise ratio; Amplify-and-forward (AF); channel estimation error; conventional relaying; error probability; opportunistic relaying;
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/TVT.2011.2181549
