DocumentCode :
2514137
Title :
Increasing the throughput in multi-hop wireless networks by using spatial multiplexing
Author :
Hennhöfer, Mako ; Haardt, Martin ; Del Galdo, Giovanni
Author_Institution :
Commun. Res. Lab., Ilmenau Univ. of Technol., Germany
Volume :
5
fYear :
2004
fDate :
17-19 May 2004
Firstpage :
2627
Abstract :
Raising the carrier frequencies of future mobile communication systems results in a higher path loss which would lead to a dense mesh of access points (base stations) to guarantee coverage. To avoid the high number of access points, multi hop concepts such as the wireless media system (WMS) are proposed to extend the range of the access points. In a typical multi-hop scenario, the data is routed from an access point (AP) over one or more relays to the mobile station. The relays do not require a connection to the core network. Therefore, the infrastructure costs are lower. These concepts might use fixed or mobile wireless relays (FWRs) to extend the range of the AP as this guarantees a certain coverage. If the WMS uses relaying in the time domain, there is a reduction of the throughput for each hop due to idle times. This reduction in throughput is avoided by the use of spatial multiplexing via smart antennas. This is due to the fact that a relaying scheme based on spatial multiplexing (RSM) can handle several connections to spatially separated locations at the same time.
Keywords :
adaptive antenna arrays; mobile radio; radio repeaters; space division multiple access; telecommunication network routing; 100 Mbit/s; 2 GHz; 5 GHz; WMS; access point range; base station coverage; fixed relays; high frequency path loss; mobile communication systems; mobile station routing; mobile wireless relays; multihop wireless networks; multiple access schemes; smart antennas; spatial multiplexing; wireless media system; wireless network throughput increase; Array signal processing; Bandwidth; Communications technology; Frequency; Intelligent networks; Relays; Spread spectrum communication; Throughput; Wireless LAN; Wireless networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th
ISSN :
1550-2252
Print_ISBN :
0-7803-8255-2
Type :
conf
DOI :
10.1109/VETECS.2004.1391397
Filename :
1391397
Link To Document :
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