Abstract:
In today’s age of communication, the requirement for higher bandwidths has increased tremendously. As all communication is rapidly shifting towards IP technology, there is a greater demand for stronger internet. At the same time, customers are demanding portability.
To cater to the bandwidth and portability needs, we are implementing a test bed network architecture that has a Passive Optical Network (PON) at the back end and a Wireless Mesh Network (WMN) at the front end. PON has an Optical Line Transmitter (OLT) at the head end of the network. Fiber optic cables connect the OLT to a switch, which further connects to multiple Optical Network Units (ONUs). From OLT to ONU, Ethernet broadcast is used for downlink and Time Division Multiplexing (TDM) is used for uplink. Each ONU connects to a gateway router. Beyond the gateway router is a mesh network of 802.11/n routers that use the Optimum Link State Routing (OLSR) algorithm. The WMN ensures scalability and robustness. The throughput and delay performance of this architecture were tested using Iperf and other network analyzing tools. The test bed can be used for future experimentation of new algorithms that are being developed in SEECS.
The implementation of this architecture will contribute to the alleviation of current limitations on internet access and also to meet future bandwidth and portability requirements.
