Today, one of the new technologies in the modern era is Vehicular Ad-hoc Network which has takenenormous attention in the recent years. Because of rapid topology changing and frequent disconnectionmakes it difficult to design an efficient routing protocol for routing data between vehicles, called V2V orvehicle to vehicle communication and vehicle to roadside infrastructure, called V2I. Designin...

In this paper, we present Collaborative Opportunistic Recovery Algorithm (CORA) designed for multicast multimedia applications with low loss as well as latency constraints in ad hoc networks. CORA is an independent service that can run atop any ad hoc multicast routing protocol. The main features of CORA are localized recovery process, deterministic (as opposed to probabilistic) peer-to-peer re...

To provide a reliable assistance to patients, emergency and intensive care systems have increased demands for quality of service at different levels, with the MAC layer assuming special relevance. The Low Power Real Time (LPRT) MAC protocol presents suitable characteristics to be deployed in emergency platforms due to its efficient bandwidth allocation, low energy consumption, and bounded laten...

Accurate network monitoring is vital for the operation of Grids. The packet loss ratio is among the most important metrics for identifying poor network conditions, since it highly affects data throughput performance and the overall end-to-end data transfer quality. In this paper, we present a scalable and non-intrusive technique based on passive network monitoring for estimating the packet loss...

Long Term Evolution (LTE) is the next generation wireless communication network with fast connectivity and high mobility to support variety of applications like video conferencing, video streaming, file transfer, web browsing etc. LTE system effectively utilizes the resources by dynamically scheduling the users in both frequency and time domain. However, scheduling algorithms are not defined in...

In present packet-based wireless OFDM systems, such as IEEE802.11a/g, a preamble technique is used to accomplish the synchronization functions. Although this technique is well-developed, delay and bitrate loss due to preamble motivate us to adapt the superimposed pilot technique as an alternative approach for synchronization. In this paper1, we study the spectral bitrate loss due to both techni...

Wireless Sensor Network (WSN) diverts the attention of the research community as it is easy to deploy, selfmaintained and does not require predefine infrastructure. These networks are commonly used to broadcast multimedia data from source to destination. However, this kind of data transmission has some challenges, i.e. power and bandwidth limitation with small delay. Art of work mainly focus on...

Packet-pair receiver-driven cumulative Layer Multicast (PLM) and Fair Layer Increase Decrease with Dynamic Layering (FLID-DL) are two of the recently proposed receiver-driven layered multicast congestion control protocols improved from the famous layered multicast protocols (RLM and RLC). Both have been evaluated by their authors and claim a few advances for layered multicast congestion control...

A cognitive method called most congested access first (MCAF), minimizing the packet loss ratio and improving the throughput of a multihop mobile WiMAX network, is proposed. MCAF combines both the time division multiple access and the orthogonal frequency division multiple access methods. MCAF additionally uses spectral aid and buffer management methods, which are proposed in this paper, to mana...

We present m-limited forwarding, a technique to reduce the cost of disseminating information in a power-constrained environment by limiting the cardinality of the subset of nodes which retransmit a packet. We show how this technique can be used to improve the performance of ad hoc routing protocols. m-AODV applies m-limited forwarding to the AODV routing protocol, and is used for networks with ...