8 January 1996 Approaches to wireless transmission of low-bit-rate video
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Abstract
We consider the organization of the information in video sequences for transmission over an integrated wireless access network carrying a wide variety of services at different bit rates. The access network employs direct-sequence code-division multiple access at bandwidths of 5 or 15 MHz. Video calls at 64 kb/s or voice calls at a peak rate of 8 kb/s are admitted on demand depending on the existing interference profile within a cell and its neighborhood. The transmission of QCIF resolution video sequences at 10 frames/sec has been simulated. The video information is packetized into two priority layers, a high priority layer and a discardable enhancement layer. In addition to FEC, we employ an ARQ protocol with retransmission time-out set at 1 frame interval or 100 ms. With transmission power appropriate to bit error rates of 10-4, picture loss rates of less than one per hour can be achieved.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Paul Mermelstein, Masoud R. K. Khansari, "Approaches to wireless transmission of low-bit-rate video", Proc. SPIE 2602, Wireless Technologies and Services for Cellular and Personal Communication Services, (8 January 1996); doi: 10.1117/12.229468; https://doi.org/10.1117/12.229468
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