Your Search Results

Use this resource - and many more! - in your textbook!

AcademicPub holds over eight million pieces of educational content for you to mix-and-match your way.

Experience the freedom of customizing your course pack with AcademicPub!
Not an educator but still interested in using this content? No problem! Visit our provider's page to contact the publisher and get permission directly.

Multi-user spatial diversity in a shadow-fading environment

By: Kaveh, M.; Anghel, P.; Emamian, V.;

2002 / IEEE / 0-7803-7467-3


This item was taken from the IEEE Conference ' Multi-user spatial diversity in a shadow-fading environment ' In a wireless network, communication between a source and a destination mobile station (DMS) fails to establish if the source or the DMS is located inside a deep shadow-fading region. In this situation, intermediate mobile stations may be used to relay the signal between the two nodes. In a cellular system the source is a base station (BS) and the DMS is a weak mobile station (MS) while in an ad-hoc network, the source and the DMS are two nodes of the network. In this paper we study the scheme of ""multi-user spatial diversity"" as a new method of diversity to combat the undesired shadow-fade situation. We study the case where one or several mobile stations (MSs) relay the signal between the source and the DMS, in a shadow-fading environment. We derive a formula for the average outage probability of the received signal to noise ratio at the DMS, when M intermediate MSs relay the signal from the source to the DMS according to a particular protocol. The outage probability improves as the number of the relays increases.