期刊名称：International Journal of Distributed and Parallel Systems
印刷版ISSN：2229-3957
电子版ISSN：0976-9757
出版年度：2012
卷号：3
期号：4
DOI：10.5121/ijdps.2012.3421
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：With the standardization of CDMA2000-1x, EVDO, and its subsequent release/revisions (0, A, B, and C) each telecom vendor continues to develop their equipment as well as network management software for supporting EVDO services and defines EVDO performance parameters separately. This leads to sort of redundancy and perplexity in multivendor network environments in which network optimization engineer has to deal with all these performance parameters to optimize the system performance. There is need to unify these different EVDO performance parameters defined by different vendors to overcome this redundancy and confusion. To complete this objective we first has identified different EVDO key performance indicators defined by different vendors through their software i.e. element management systems (EMS). After identification of these KPIs we then take one most important KPI i.e., the Session Setup Success Rate (SSSR) and analyses its constituent counters and find out differences through daily statistic reports, standard definitions formula and message flow diagrams defined by each vendor. Then we proposed a new KPI, HSN Ratio (Harmonic mean of session setup success and session negotiation success Ratios) to get a complete picture of end-to-end session setup success rate. Finally we have collected 15 days hourly statistic report of SSSR and session negotiation success rate defined by each vendor through their EMS’s and applied minimum mean square error method to unify the proposed HSN ratio. As a result of this process we have figure out differences between multivendor KPIs and minimizes these differences to unify them. Similarly this whole process could be repeated to unify other EVDO KPIs.
