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Overcoming interference in spatial multiplexing MIMO cellular networks (2007)
| Venue: | IEEE Wireless Communication Magazine |
| Citations: | 56 - 9 self |
BibTeX
@ARTICLE{Andrews07overcominginterference,
author = {Jeffrey G. Andrews and Wan Choi and Robert W. Heath},
title = {Overcoming interference in spatial multiplexing MIMO cellular networks},
journal = {IEEE Wireless Communication Magazine},
year = {2007}
}
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Abstract
Multi-antenna transmission and reception (known as MIMO) is widely touted as the key technology for enabling wireless broadband services, whose widespread success will require ten times higher spectral efficiency than current cellular systems, at ten times lower cost per bit. Spectrally efficient, inexpensive cellular systems are by definition densely populated and interference-limited. But spatial multiplexing MIMO systems – whose principal merit is a supposed dramatic increase in spectral efficiency – lose much of their effectiveness in high levels of interference. This paper overviews several approaches for handling interference in multicell MIMO systems. The discussion is applicable to any multi-antenna cellular network including 802.16e/WiMAX, 3GPP (HSDPA and 3GPP LTE) and 3GPP2 (1xEVDO). We argue that many of the traditional interference management techniques have limited usefulness (or are even counterproductive) when viewed in concert with MIMO. The problem of interference in MIMO systems is too large in scope to be handled with a single technique: in practice a combination of complementary countermeasures will be needed. We overview emerging system-level interference-reducing strategies based on cooperation, which will be important for overcoming interference in future spatial multiplexing cellular systems.
Keyphrases
spatial multiplexing mimo cellular network ten time spectral efficiency key technology traditional interference management technique current cellular system spatial multiplexing mimo system wireless broadband service supposed dramatic increase several approach multi-antenna cellular network principal merit multicell mimo system future spatial multiplexing cellular system single technique mimo system inexpensive cellular system widespread success high level system-level interference-reducing strategy multi-antenna transmission complementary countermeasure
