Spatial multiplexing and diversity in a MIMO based WLAN system

Moldovan, Ancuta; Palade, Tudor; Pistea, Ana-Maria; Puşchiţă, Emanuel; Colda, Rebeca; Vermešan, Irina; Androne, Cristian

doi:10.1109/iccomm.2010.5509013

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2013

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“…Spatial diversity technique is used to make the quality of data transmission more robust [4]. The basic concept is using multiple transmission channels provided by the multiple antennas of transmitters/receivers to combat the influence of channel fading.…”

Section: Introductionmentioning

confidence: 99%

A 1.9–2.6 GHz router switch IC for MIMO applications in 0.18 μm CMOS technology

Chung

Lai

Chi

et al. 2013

2013 Asia-Pacific Microwave Conference Proceedings (APMC)

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In MIMO applications, beam forming and spatial diversity are two possible solutions to enhance system performance. To operate in these two scenarios with a utility hardware, the function of reconfiguration is required. In beam forming, power combining and power splitting are needed in receiver and transmitter respectively. In spatial diversity, signal from each antenna are processed by RF paths and basebands separately to against the fading distortions. In this work, a router switch implemented in 0.18 m CMOS for 2X2 MIMO is proposed. The proposed router switch can be configured to provide three operation modes, which are power combining mode, power splitting mode, and power paralleling mode. It provides a flexible interface between RF front-end and transceiver chip in MIMO systems.Index Terms -MIMO, router switch, beam forming, spatial diversity.

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Section: Introductionmentioning

confidence: 99%