Title :
Throughput multiplication of wireless LANs: spread spectrum with SDMA
Author :
Okamoto, Garret ; Xu, Guanghan
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA
Abstract :
The bandwidth allocated for wireless LANs in the IEEE 802.11 standard is limited and the overall throughput is limited for multimedia services because base stations grant each node air time in a sequential manner. With exponentially growing demand for multimedia services, this limitation becomes a bottleneck for expanding wireless network capabilities. In this paper, we exploit another resource, i.e., space, and design a new spread spectrum space-division-multiple-access (SS-SDMA) protocol to achieve throughput multiplication and significant reduction of communication delays. The basic idea behind the SS-SDMA protocol is that it exploits spatial diversity among different terminals to selectively transmit and receive signals in the same time period and frequency band
Keywords :
IEEE standards; access protocols; channel capacity; data communication; delays; land mobile radio; multi-access systems; multimedia communication; pseudonoise codes; spread spectrum communication; telecommunication standards; wireless LAN; IEEE 802.11 standard; SDMA; SS-SDMA protocol; base station; bottleneck; communication delays; expanding wireless network capabilities; multimedia services; spatial diversity; spread spectrum; spread spectrum space-division-multiple-access protocol; terminals; throughput multiplication; wireless LAN; Bandwidth; Base stations; Delay; Electronic mail; Local area networks; Multiaccess communication; Protocols; Spread spectrum communication; Throughput; Wireless LAN;
Conference_Titel :
Vehicular Technology Conference, 1996. Mobile Technology for the Human Race., IEEE 46th
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3157-5
DOI :
10.1109/VETEC.1996.501537
