Hari Mohan Singh

Learn More
The p-cycle is the most promising technique used for the survivability of WDM networks. Relevant studies conducted by eminent researchers in this field have suggested that the reliability of the p-cycle can be enhanced further. In order to address the problem, the authors introduced a concept, namely, intercycle switching (ICS), that reduces the length of(More)
Broadly speaking a term Cryptography used to secure & hide the original information of a message from the unauthorised users. First time used to encrypt a plaintext into cipher text where a key was associated at the time of encryption to change original content into some other form i.e. decrypted message. And same key was used to decrypt that message into(More)
p-cycles are a fairly recent addition to the set of basic approaches for transport networks survivability. The main attraction of p-cycle is that it combines the ring-like speed with mesh-like efficiency. p-cycles networks are guaranteed to be protected against single fiber duct failure. However, it is incompetent to provide protection on subsequent(More)
We consider extensions of the design theory and related operating concepts to support multiple levels of Quality of Service (QoS) for priority-based traffic in a transport network that uses p-cycles as the basic protection method. The proposed integrated QoS scheme can provide appropriate transport service for various applications relating to different(More)
Today, the most promising technique used for the survivability of optical transport networks is p-cycle. However, it provides longer restoration path at failure state of the network. The intercycle switching (ICS) is one of the recent approaches that is based on idle p-cycles and is used for shortening the length of restoration path in single-fault model.(More)
Semantic service trading is a powerful mechanism to allow devices to share the resources and services in highly dynamic environment. Mobile devices are able to spontaneously form highly dynamic Ad-hoc networks allowing the communication even when no infrastructure exists. These types of networks enable the participating devices to share resources and(More)
-The development of Wavelength Division Multiplexing (WDM) technologies has increased enormously the transmission capacity of optical networks. Optical networks employing WDM is potential candidate for future Wide Area Network (WAN) because these networks are prone to component failure & carry large amount of traffic. However, any failure in the network can(More)
Congestion control in wireless networks has been extensively investigated over the years and several schemes and techniques have been developed, all with the aim of improving performance in wireless net-work. With the rapid expansion and implementation of wireless technology it is essential that the congestion control problem be solved. This paper presents(More)
In recent years, p-cycles have been widely investigated for survivability of WDM networks. They provide fast recovery speed such as ring and capacity efficiency as mesh survivability schemes. However, restoration paths are very long, which causes excessive latency and intolerable physical impairments. On the other hand, nowadays, a wide set of applications(More)
Normally restoration path served by efficient p-cycle for on-cycle links are quite large in length. In a transparent optical network, there is usually a limit on the length of the light paths; beyond this limit transmission quality may be affected. To sustain adequate transmission quality, regeneration may be a solution but increases the overall cost of the(More)