Title :
Downlink Spectral Efficiency of Mobile WiMAX
Author :
Srinivasan, Roshni ; Timiri, Shailender ; Davydov, Alexei ; Papathanassi, Apostolos
Author_Institution :
Wireless Stand. & Technol., Intel Corp., OR
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;
Conference_Titel :
Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th
Conference_Location :
Dublin
Print_ISBN :
1-4244-0266-2
DOI :
10.1109/VETECS.2007.572
