@inproceedings{a98f1899836a4de2b4ad85ae923ec1ef,
title = "Channel-oriented channel allocation scheme (COCAS) for multi-antenna OFDMA femtocells",
abstract = "In this paper, we propose a low-complexity distributed channel-oriented channel allocation scheme (COCAS) to improve the link reliability of users and the spectrum efficiency of femtocells for multi-antenna orthogonal frequency-division multiple access (OFDMA)-based femtocell systems. By two steps of comparisons on channel gains of resource blocks and antennas, the COCAS can jointly allocate suitable antennas and resource blocks for transmission. We also investigate the impacts of channel allocation and multiple antennas on link reliability of users and spectrum efficiency of femtocells. Simulation results show that the proposed COCAS can achieve higher spectrum efficiency for femtocells than the random channel allocation scheme with a given number of antennas equipped on the femtocell base station, under the link reliability requirement.",
keywords = "Channel allocation, Heterogeneous network, Link reliability, Multiple antennas, Spectrum efficiency, Two-tier interference",
author = "Tsai, {Ang Hsun} and Li-Chun Wang",
year = "2015",
month = jul,
day = "1",
doi = "10.1109/VTCSpring.2015.7145738",
language = "English",
series = "IEEE Vehicular Technology Conference",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2015 IEEE 81st Vehicular Technology Conference, VTC Spring 2015 - Proceedings",
address = "United States",
note = "null ; Conference date: 11-05-2015 Through 14-05-2015",
}