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标题：Network Architecture and Performance Analysis of MULTI-OLT PON for FTTH and Wireless Sensor Networks
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作者：Monir Hossen ; Masanori Hanawa
期刊名称：International Journal of Wireless & Mobile Networks
印刷版ISSN：0975-4679
电子版ISSN：0975-3834
出版年度：2011
卷号：3
期号：6
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：An integrated fiber-to-the-homes (FTTHs) and wireless sensor network (WSN) provides a cost-effective solution to build up an immaculate ubiquitous-City (U-city). The key objectives of effective convergence of FTTH and WSN are less computational complexity for data packet processing, low installation cost, and good quality of services. In this paper, we introduce an integrated network structure of multi-optical line terminal (multi-OLT) passive optical network (PON) which can accommodate multiple service providers in a single PON. A modified version of interleaved polling algorithm is proposed for scheduling of control messages from multiple OLTs in a single network. We also provide detailed numerical analysis of cycle time variation, successive grant scheduling time, and average packet delay for both uniform and non-uniform traffic loads generated by each ONU, using fixed service bandwidth allocation scheme and limited service bandwidth allocation scheme. We also compare the throughput of the proposed scheme with existing single-OLT PON for non-uniform traffic load using limited service bandwidth allocation scheme. The simulation results show that the proposed multi-OLT PON system can supports existing bandwidth allocation schemes with better performance than the single-OLT PON in terms of average packet delay, bandwidth utilization, and throughput.
关键词：Multi-OLT PON; Network Architecture; WSN; FTTH; Limited Service Bandwidth Allocation Scheme;Interleaved Polling Algorithm; Non-uniform Traffic; Packet Delay