Karunaharan Ratnam

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The Transmission Control Protocol (TCP) has been mainly designed assuming a relatively reliable wireline network. It is known to perform poorly in the presence of wireless links because of its basic assumption that any loss of a data segment is due to congestion and consequently it invokes congestion control measures. However, on wireless access links, a(More)
SUMMARY The Transmission Control Protocol (TCP) has been mainly designed assuming a relatively reliable wireline network. It is known to perform poorly in the presence of wireless links because of its basic assumption that any loss of a data segment is due to congestion and consequently it invokes congestion control measures. However, on wireless access(More)
— In [1], [2], we presented the design, specification and proof of correctness of a fully distributed location management scheme for PCS networks and argued that fully replicating location information is both appropriate and efficient for small PCS networks. In this paper, we analyze the performance of this scheme. Then, we extend the scheme in a(More)
—In this paper, we present an efficient fault-tolerant distributed location management protocol for personal communications service (PCS) networks. It achieves low connection-establishment delay, and under certain conditions, low overall cost compared to the current PCS location management protocol (i.e., IS-41). It also effectively avoids the shortcomings(More)
The Transmission Control Protocol (TCP) used in the Internet has been mainly designed assuming a relatively reliable wireline network. TCP assumes that any loss is due to congestion and consequently invokes congestion control measures. This has been shown to yield poor performance in the presence of wireless links as a large number of segment losses will(More)
The main aim of cellular mobile communication is to discover existing location of mobile terminals to distribute the service, which is well-known as location management. The LM involves tracking of (mobile terminal's) MT's up-to-date location, which moves freely across different cells in order to provide them services. Every MT undergoes same(More)