By Topic

Broadcasting, IEEE Transactions on

Issue 4 • Date Dec. 1999

Filter Results

Displaying Results 1 - 9 of 9
  • Comments on: "Reduction of peak-to-average power ratio of OFDM system using a companding technique"

    Publication Year: 1999 , Page(s): 418 - 419
    Cited by:  Papers (11)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (124 KB)  

    The authors comment on the work of Xianbin Wang, Tjhung, and and Ng (see ibid., vol.45, no.3, 1999). They add that Wang et al. present a very elegant analysis of the symbol error rate in a companded COFDM system. A comment that they make is that it seems that the noise power was constant, while the transmitted signal's power was increased as it was companded. It would in our opinion be more meaningful to compare the performance of the companded signal to that of an uncompanded signal of equal power. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 1999 Index

    Publication Year: 1999 , Page(s): 433 - 440
    Save to Project icon | Request Permissions | PDF file iconPDF (896 KB)  
    Freely Available from IEEE
  • Channel estimation using pilot tones in OFDM systems

    Publication Year: 1999 , Page(s): 400 - 409
    Cited by:  Papers (25)  |  Patents (9)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (496 KB)  

    Channel estimation techniques using pilot tones in OFDM systems are investigated. Two time-domain channel estimation methods are proposed. Based on theoretical analysis and computer simulation, for a channel with multipath distortion and AWGN, the proposed time-domain channel estimation schemes perform better than the conventional frequency-domain channel estimation techniques View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Reply to the comments on “Reduction of peak-to-average power ratio of OFDM system using a companding technique”

    Publication Year: 1999 , Page(s): 420 - 422
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (196 KB)  

    Xianbin Wang, Tjhung and Ng (see ibid., vol.45, no.3, 1999) authors reply that they would like to thank Mattsson, Mendenhall and Dittmer (see ibid., vol.45, no.4, 1999) for their constructive comments. They observe that indeed, it would be more meaningful to compare the performance of the companded signal to that of an uncompanded signal of equal power. They consider a companded OFDM system with constant transmission power View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Local-area field strength variation measurement of the digital terrestrial television signal (COFDM 8K) in suburban environments

    Publication Year: 1999 , Page(s): 386 - 391
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (472 KB)  

    This paper presents the results of a field measurement campaign at the experimental COFDM 8K digital terrestrial television network developed by the partners of the VIDITER project in Madrid (Spain). This article focuses on the field strength spatial variation distribution inside small coverage areas. Due to the fact that the distribution parameters strongly depend on the survey area type, during this first stage the only environments taken into account have been those traditionally considered as suburban View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Multistream hybrid in band on channel FM systems for digital audio broadcasting

    Publication Year: 1999 , Page(s): 410 - 417
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (596 KB)  

    New approaches to hybrid in band on channel (HIBOC) FM systems for digital audio broadcasting based on multistream transmission methodology and multidescriptive audio coding techniques are introduced. These ideas combined with a lower per sideband audio coding rate and more powerful channel codes result in robust transmission and graceful degradation in variable interference channels. By also using orthogonal frequency division multiplexing techniques with a nonuniform power profile combined with unequal error protection and sideband time diversity, we arrive at new HIBOC FM schemes with extended coverage and better peak audio quality than previously proposed. The paper provides approximate performance analysis for potential systems including audio coding quality View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Canadian digital terrestrial television system technical parameters

    Publication Year: 1999 , Page(s): 355 - 364
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (732 KB)  

    On November 8, 1997, Canada formally adopted the ATSC Digital Television Standard for terrestrial transmission as defined in document A/53 of the Advanced Television Systems Committee of the USA and as modified by the FCC document MM Docket No. 87-268. This paper discusses the Canadian digital terrestrial television system technical parameters for implementation and frequency planning: interference protection ratios, reference system parameters, and radio frequency emission masks, as well as their design methodology. First, the Canadian terrestrial DTV design guidelines are presented, followed by the introduction of DTV reference receiving system set up and the parameter selection of the interference protection ratios. Last, the design methodology of the emission masks is discussed View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Adjacent and co-channel interference disturbances from a digital terrestrial television signal (COFDM-8K system) on analogue PAL systems

    Publication Year: 1999 , Page(s): 392 - 399
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (556 KB)  

    This paper presents some results of a measurement campaign in the service area of the digital terrestrial television (COFDM-8K system) experimental network of Madrid (Spain). The purpose of this survey has been to determine the degradation suffered by analogue PAL-G signals in the presence of co-channel and adjacent channel digital emissions. The result is a curve that estimates the protection ratios between analogue and digital received power levels View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Digital television transmission parameters-analysis and discussion

    Publication Year: 1999 , Page(s): 365 - 385
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1472 KB)  

    Terrestrial digital (DTV) broadcasting is now underway in the major markets in the United States after the Federal Communications Commission (FCC) in several Reports and Orders set the standard on December 24, 1996, and subsequently released rules of operation and broadcaster channel allocations. Broadcasters are concerned with many in-band and out-of-band transmission parameters, including data signal quality, clock tolerance, radiated power tolerance, carrier phase noise, adjacent channel emissions, and precision frequency offset requirements. The FCC permits DTV power-level changes and/or transmitting antenna location and height and beam tilt in the context of the minimum interference levels. The Advanced Television Systems Committee (ATSC) has provided guidelines for broadcasters in the form of suggested compliance specifications, which are covered in this paper View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

Aims & Scope

IEEE Transactions on Broadcasting covers the field of broadcast technology, including the production, distribution, transmission, and propagation aspects of broadcasting.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Yiyan Wu
Communications Research Ctr Canada