Title :
Development and performance evaluation of mobile WiMAX testbed
Author :
Hu, Su ; Wu, Gang ; Guan, Yong Liang ; Law, Choi Look ; Yan, Yanxin ; Li, Shaoqian
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ.
Abstract :
Mobile WiMAX, which is standardized in the IEEE 802.16e-2005/802.16d-2004, is an broadband wireless access technology that enables convergence of mobile and fixed broadband networks through scalable orthogonal frequency-division multiple access (OFDMA), adaptive-antenna systems, and multiple-input multiple-output (MIMO) techniques. This paper presents the development and testing of a mobile WiMAX physical-layer testbed, which is constructed using National Instruments RF vector signal generator and RF vector signal analyzer. Implementation issues, including frame synchronization, phase correction, and power normalization, will be discussed. Practical performance measurements in terms of EVM (error vector magnitude) and spectral regrowth after HPA (high power amplifier) will be evaluated
Keywords :
IEEE standards; MIMO communication; OFDM modulation; WiMax; broadband networks; frequency division multiple access; mobile radio; signal generators; synchronisation; EVM; HPA; IEEE 802.16e standard; MIMO; National Instruments RF vector signal generator; OFDMA; adaptive-antenna system; broadband wireless access technology; error vector magnitude; frame synchronization; high power amplifier; mobile WiMAX; multiple-input multiple-output technique; orthogonal frequency-division multiple access; performance evaluation; phase correction; physical-layer testbed; Broadband communication; Frequency synchronization; Instruments; MIMO; RF signals; Radio frequency; Signal analysis; Signal generators; Testing; WiMAX;
Conference_Titel :
Mobile WiMAX Symposium, 2007. IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
1-4244-0957-8
DOI :
10.1109/WIMAX.2007.348688
