Streaming media service based on fuzzy similarity in wireless mobile networks

  • Authors:

  • Chongdeuk Lee

  • Affiliations:

  • Div. of Electronic Engineering, Chonbuk National University, Jeonbuk, Korea

  • Venue:
  • The Journal of Supercomputing
  • Year:
  • 2013

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Abstract

Owing to the recent development in mobile network technologies, users may enjoy streaming media services anytime, anywhere using personal mobile communication devices. Wireless mobile streaming media services, however, have such problems as delay, congestion, and crosstalk due to narrow network bandwidth and limited resources. These problems degrade not only Quality of Service (QoS), but also responsiveness and reliability of the streaming media service. To solve this problem, this paper proposes a Fuzzy Similarity-Based Transcoding Proxy (FSTP) mechanism. The proposed FSTP mechanism analyzes the fuzzy similarity of partitioned segment versions of media objects to construct a Fuzzy Similarity-Based Transcoding Graph (FSTG). The constructed FSTG determines transcoding for the partitioned media object segment versions. The determined transcoding improves Delay Saving Ratios (DSR), Cache Hit Precision Ratio (CHPR), and Cache Hit Recall Ratio (CHRR). Therefore, the more relevant media object segment versions, determined by the fuzzy similarity, are transcoded and cached first to reduce the start delay time and network traffic. The proposed mechanism is simulated to evaluate various performance parameters. The simulation results show that the proposed mechanism achieves improved performance in DSR, CHPR, and CHRR compared with those of other existing mechanisms.