A comparative study of switching schemes in isotropic networks

Abstract

This paper is a comparative study of two switching schemes for isotropic networks, namely, single hop and cut-through communication schemes. The comparison between the two is based on the time delay for a packet to go through a given path, characterized by the number of links between source and destination. Each sclieme is modeled by a discrete Markov chain. The research results show how the performance of the communication schemes depend on the path length, the load on the communication network and the error rate. As expected, the cut-through communication scheme is considerably better than the single hop communication sclicrne when the communication load is light. However, as the load increases, the performance of the cut-through scheme deterie I ates inore rapidly than the single hop, until they are comparable. \\'hen the load is very heavy, the two performance curves actually cross very close to 1 -3 p , so the single hop comnunication scheme works better. The error rate plays a crucial role in the communication process. The time delay becomes infinite when the throughput approaches 1 -p. We present simple formulas for all the analysis.

A Study on Socio-Economic Status and Consumption Pattern of Tibetan Refugee Householdsin Ladakh Settlement, India

“…(8) A systematic review of socioeconomic differences in food habits in Europe indicated that lower socio-economic status has an unhealthier consumption pattern. (9) Educational level and household income significantly impacted eating habits. (10) A study conducted on Saharawi refugees living in Algeria concluded that low socioeconomic status lacks dietary diversity.…”