Summary
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Efficient Multi-Service Allocation for Digital Terrestrial Broadcasting Systems Bo HAO Jun WANG Zhaocheng WANG Publication IEICE TRANSACTIONS on Communications Vol.E97-B No.9 pp.1977-1983 Publication Date: 2014/09/01 Online ISSN: 1745-1345 DOI: 10.1587/transcom.E97.B.1977 Type of Manuscript: PAPER Category: Terrestrial Wireless Communication/Broadcasting Technologies Keyword: terrestrial broadcasting, multi-service, Offset QAM, IOTA, Full Text: PDF>>
Summary: This paper presents an efficient multi-service allocation scheme for the digital television terrestrial broadcasting systems in which the fixed service is modulated by orthogonal frequency division multiplexing and quadrature amplitude modulation (OFDM/QAM) with larger FFT size and the added mobile service is modulated by OFDM and offset quadrature amplitude modulation (OQAM) with smaller FFT size. The two different types of services share one 8MHz broadcasting channel. The isotropic orthogonal transform algorithm (IOTA) is chosen as the shaping filter for OQAM because of its isotropic convergence in time and frequency domain and the proper FFT size is selected to maximum the transmission capacity under mobile environment. The corresponding transceiver architecture is also proposed and analyzed. Simulations show that the newly added mobile service generates much less out-of-band interference to the fixed service and has a better performance under fast fading wireless channels. | |||||
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