– In this paper, we propose a new transport protocol, namely Scalable Streaming Video Protocol (SSVP), which employs an AIMD-oriented congestion control mechanism. SSVP, in a complementary role, operates on top of UDP and is specifically designed to support unicast video streaming applications. The transmission rate is controlled by properly adjusting the interpacket-gap, spacing outgoing packets evenly to produce a smoothed flow. SSVP attempts to optimize the performance of streaming video delivery with concern to friendliness with interfering traffic. Quantifying SSVP’s performance, we identify that the protocol utilizes a higher fraction of the available bandwidth, and maintains a regular transmission rate with oscillations of a smaller magnitude in comparison with existing congestion control schemes.