OFDM for Wireless Multimedia CommunicationsA study of OFDM, including a comparison with other forms of single carrier modulation methods. It provides the design guidelines needed to maximise benefits from this technology. There is practical advice on how to plan, design and use OFDM to make wireless multimedia communications happen. It offers a solid base for assessing the performance of wireless OFDM systems; explains how OFDM signals are formed using the Inverse Fast Fourier Transform, how the cyclic extension mitigates the effects of modulation, and how windowing can limit out-of-band radiation; discusses the sensitivity of OFDM to synchronization errors; examines the basics of direct sequence and frequency hopping CMDA, helpful in understanding combinations of OFDM and CDMA; explains Multicarrier CDMA, various transmitter architectures, and the pros and cons compared to other CDMA techniques; and includes a discussion of the combination of OFDM and frequency hopping CDMA to get a multiple access system with similar advantages to direct sequence CDMA. |
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Common terms and phrases
amplitude backoff bandslot bandwidth base station bit rate carrier frequency CDMA channel estimation Chapter clipping Comm complementary codes complex constellation convolutional code correlation data rates decoding delay profile delay spread demodulation differential detection downlink DS-CDMA encoded error fading channel FFT interval Figure filter frequency band frequency domain frequency offset guard interval HIPERLAN hopping IEEE IFFT Indoor input interference interleaving length maximum Mbps MC-CDMA MC-CDMA system mobile station multicarrier multipath delay multiple access multiplexing number of subcarriers OFDM signal OFDM symbol OFDM system OFDMA orthogonal output packet PAP ratio parameters peak cancellation peak windowing performance phase noise pilots power control Prasad Propagation QPSK RAKE receiver Rayleigh fading received signal samples sequence simulated soft handover spectral spectrum spread-spectrum subcarrier spacing subcarriers symbol duration synchronization Technology training symbols transmission transmitted uplink users values wireless LAN Wireless Personal Communications