@inproceedings{aeefffca9a3040babb320d8890fe2a34,
title = "Multi-user MIMO scheduling in LTE-advanced uplink systems",
abstract = "Due to the facts of wireless data usage being increasing faster now than ever before and more multimedia content being generated by users and uploaded to the network, multi-user MIMO (MU-MIMO) technology would be crucial to improve the LTE-A uplink spectral efficiency for meeting the service demands. On the other side, adopting clustered SC-FDMA technology as the uplink multiple access scheme of LTE-A means that a User Equipment (UE) can be allocated more than one cluster which consists of contiguous RBs (this is the contiguity constraint). Moreover, all allocated RBs to a UE must use the same modulation and coding scheme (this is the robust rate constraint). The two constraints make MU-MIMO UL scheduling more complicated. In this paper, we formulate the MU-MIMO UL scheduling problem with taking two constraints into consideration. Since this optimization had been proven to be an NP-hard problem, we further develop two low-complexity heuristic algorithms. We demonstrate that competitive performance can be achieved in terms of system throughput and fairness index.",
keywords = "Clutered SC-FDMA, LTE-A, MU-MIMO, Resource allocation",
author = "Hsu, {Lung Han} and Hsi-Lu Chao and Liu, {Chia Lung} and Huang, {Kuei Li}",
year = "2013",
month = dec,
day = "1",
doi = "10.1109/PIMRC.2013.6666437",
language = "English",
isbn = "9781467362351",
series = "IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC",
pages = "1811--1816",
booktitle = "2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013",
note = "2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013 ; Conference date: 08-09-2013 Through 11-09-2013",
}