Ravindra Vaishampayan

Learn More
We present the protocol for unified multicasting through announcements (PUMA) in ad-hoc networks, which establishes and maintains a shared mesh for each multicast group, without requiring a unicast routing protocol or the preassignment of cores to groups. PUMA achieves a high data delivery ratio with very limited control overhead, which is almost constant(More)
A new end-to-end communication solution called Omnipresent Ethernet (OEthernet) is demonstrated through a test-bed. The solution takes into consideration contemporary interconnection methodologies in enterprise/provider networks from a generalized graph perspective. The aim is to be able to convert any network graph into a known symmetric graph by simple(More)
We examine on-demand multicasting in ad hoc networks. We study a wide range of simulation scenarios and identify key limitations of MAODV. Based on our findings, we propose a number of changes in MAODV, and call the resulting protocol robust multicasting in ad hoc networks using trees (ROMANT). We compare ROMANT to MAODV and ODMRP, for a wide range of(More)
The OpenFlow concept was recently proposed primarily to facilitate policy routing in large enterprise/service provider networks. Carrier Ethernet technologies such as MPLS-TP and PBB-TE are currently considered to be the forerunners in such transport networks. Both these technologies specify the need for a managed control plane. Carrier Ethernet Switch(More)
We present the Protocol for multicasting over directional antennas (MODA) for mobile ad hoc networks (MANET). MODA is the first protocol for MANET's that uses directional antennas to reduce data packet overhead. Without increasing energy consumption, MODA increases the range of transmission as a result of which fewer nodes are involved in the forwarding(More)
A light-trail is a generalization of a lightpath allowing multiple nodes to be able to communicate along the path, leading to all-optical spatial traffic grooming. A light-trail exhibits properties of dynamic bandwidth provisioning, optical multicasting and sub-wavelength grooming, and architecturally is analogous to a shared wavelength optical bus.(More)
Capacity improvement is one of the major challenges in the design of mobile ad hoc networks. Use of multiple channels is a useful technique in order to achieve capacity improvement by allowing nodes that need to exchange data to operate on the same channel and nodes that do not need to exchange data to operate on different channels. In the recent past some(More)
In this paper we present ADPUMA, a mesh-based adaptive multicast routing protocol specifically designed to reduce the overhead needed to deliver multicast packets, saving bandwidth and energy, two of the scarcest resources in MANETS while providing high reliability. The three main features of ADPUMA are: (1) for each multicast group, it periodically floods(More)
  • 1