Downlink Spectral Efficiency of Mobile WiMAX

Author

Srinivasan, Roshni ; Timiri, Shailender ; Davydov, Alexei ; Papathanassi, Apostolos

Author_Institution

Wireless Stand. & Technol., Intel Corp., OR

fYear

2007

fDate

22-25 April 2007

Firstpage

2786

Lastpage

2790

Abstract

Mobile WiMAX is an OFDMA (orthogonal frequency division multiple access) mobile broadband air interface defined by the IEEE 802.16 family of standards and promoted by the WiMAX Forum as a solution to the requirements for mobile Internet services. Mobile WiMAX employs a number of radical enhancements, such as scalable OFDMA and advanced antenna techniques as basic features, compared to existing mobile technologies. This paper presents the results of extensive simulations to evaluate the downlink performance of mobile WiMAX employing MIMO. The results show that the use of OFDMA, large channel bandwidths, and MIMO techniques enables mobile WiMAX to provide a spectrally efficient cellular communications system suitable for broadband wireless services.

Keywords

IEEE standards; Internet; MIMO communication; OFDM modulation; WiMax; broadband networks; cellular radio; frequency division multiple access; mobile computing; radio links; IEEE 802.16; MIMO; OFDMA mobile broadband air interface; broadband wireless services; cellular communications system; downlink spectral efficiency; mobile Internet services; mobile WiMAX; orthogonal frequency division multiple access; Antennas and propagation; Bandwidth; Downlink; Laser sintering; MIMO; Network topology; Radio spectrum management; Throughput; Web and internet services; WiMAX;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th

Conference_Location

Dublin

ISSN

1550-2252

Print_ISBN

1-4244-0266-2

Type

conf

DOI

10.1109/VETECS.2007.572

Filename

4213000