On the applicability of MIMO principle to 10-66GHz BFWA networks: Capacity enhancement through spatial multiplexing and interference reduction through selection diversity

Liolis, KP; Panagopoulos, AD; Cottis, PG; Rao, BD

dc.contributor.author	Liolis, KP	en
dc.contributor.author	Panagopoulos, AD	en
dc.contributor.author	Cottis, PG	en
dc.contributor.author	Rao, BD	en
dc.date.accessioned	2014-03-01T01:31:33Z
dc.date.available	2014-03-01T01:31:33Z
dc.date.issued	2009	en
dc.identifier.issn	0090-6778	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19814
dc.subject	Broadband fixed wireless access (BFWA)	en
dc.subject	Cochannel interference	en
dc.subject	Multiple-input-multiple-output (MIMO)	en
dc.subject	Outage capacity	en
dc.subject	Rain fading	en
dc.subject	Selection diversity	en
dc.subject	Spatial multiplexing	en
dc.subject	WiMAX	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Telecommunications	en
dc.subject.other	Asymptotic analysis	en
dc.subject.other	Broadband networks	en
dc.subject.other	Cochannel interference	en
dc.subject.other	Interoperability	en
dc.subject.other	MIM devices	en
dc.subject.other	Monte Carlo methods	en
dc.subject.other	Multiplexing	en
dc.subject.other	Multiplexing equipment	en
dc.subject.other	Outages	en
dc.subject.other	Rain	en
dc.subject.other	Receiving antennas	en
dc.subject.other	Telecommunication repeaters	en
dc.subject.other	Telecommunication systems	en
dc.subject.other	Wireless networks	en
dc.subject.other	Broadband fixed wireless access (BFWA)	en
dc.subject.other	Multiple-input-multiple-output (MIMO)	en
dc.subject.other	Outage capacity	en
dc.subject.other	Rain fading	en
dc.subject.other	Selection diversity	en
dc.subject.other	Spatial multiplexing	en
dc.subject.other	Multiple access interference	en
dc.title	On the applicability of MIMO principle to 10-66GHz BFWA networks: Capacity enhancement through spatial multiplexing and interference reduction through selection diversity	en
heal.type	journalArticle	en
heal.identifier.primary	10.1109/TCOMM.2009.02.060474	en
heal.identifier.secondary	http://dx.doi.org/10.1109/TCOMM.2009.02.060474	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	This paper investigates the applicability of multipleinput- multiple-output (MIMO) technology to broadband fixed wireless access (BFWA) systems operating in the 10-66GHz frequency range. In order to employ the MIMO principle at these frequencies, the spatial channel benefits that may arise from the rainfall spatial inhomogeneity are more relevant since multipath is insignificant. Therefore, a special MIMO/ BFWA channel may be implemented if every subscriber is equipped with multiple antennas and communicates with multiple base stations. The exact relationship between conventional MIMO and the proposed 10-66GHz MIMO/BFWA channels is established. Then, emphasis is put on two different topics from the field of MIMO applications: (i) capacity enhancement for spatial multiplexed MIMO/BFWA systems; and (ii) interference reduction for MIMO/BFWA diversity systems employing receive antenna selection. More specifically, in the first case, a communication-oriented single-user capacity analysis of a 2 × 2 MIMO/BFWA spatial multiplexing system is presented, the relevant optimal power allocation policy is explored and useful analytical expressions are derived for the outage capacity achieved in the asymptotically low and high SNR regions. The effect of feedback on the capacity is investigated and quantified through Monte Carlo simulations. In the second case, a 2 × 2 MIMO/BFWA diversity system with receive selection combining is considered and its efficiency to mitigate intrasystem/intersystem cochannel interference over the downstream channel is studied from a propagation point of view. A general analytical prediction model for the interference reduction obtained by such a 2 × 2 MIMO/BFWA diversity system is presented along with a numerical validation. © 2009 IEEE.	en
heal.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC	en
heal.journalName	IEEE Transactions on Communications	en
dc.identifier.doi	10.1109/TCOMM.2009.02.060474	en
dc.identifier.isi	ISI:000263298200031	en
dc.identifier.volume	57	en
dc.identifier.issue	2	en
dc.identifier.spage	530	en
dc.identifier.epage	541	en