Approaches to wireless transmission of low-bit-rate video

Paul Mermelstein; Masoud R. K. Khansari

doi:10.1117/12.229468

8 January 1996 Approaches to wireless transmission of low-bit-rate video

Paul Mermelstein, Masoud R. K. Khansari

Proceedings Volume 2602, Wireless Technologies and Services for Cellular and Personal Communication Services; (1996) https://doi.org/10.1117/12.229468
Event: Photonics East '95, 1995, Philadelphia, PA, United States

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.

Citation Download Citation

Paul Mermelstein and 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); https://doi.org/10.1117/12.229468

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