Network Coding, Theory and Applications

IEEE Journal on Selected Areas in Communications, 2009

2013 International Conference on Green Computing, Communication and Conservation of Energy (ICGCE), 2013

Network coding is a new technology that motivates us to rethink about networking in wireless networks. Network coding of wireless helps to improve the performance networks. The existing network infrastructure will not support to the network coding communications. This concept requires us modifying the existing network communications. In this paper we brief the principles of network coding, network coding techniques, benefits and applications. We also discuss the current research topics of interest and the issues related to network coding aware routing in wireless ad hoc networks and we also present the simulation results which describe the energy gain and number of transmissions in traditional routing versus network coding.

The search for high data rates and throughput are the main demands of modern wireless communication networks. Conventional methods relied on the use of more bandwidth or larger modulation levels which have some limitations. Thus more advanced techniques are introduced such as network coding (NC) and multiple antenna system in the form of multiple inputs multiple outputs (MIMO). Each of these usually improves the obtained data rate and throughput. In this work, network coding is used in conjunction with MIMO system in order to gain the advantages of both techniques. A simple packet based network coding is introduced for network scenario with MIMO system. Wireless networks with proposed combined techniques (NC & MIMO) are modeled and simulated. The aim here is to use both techniques in a way to improve the performance of the system. An intermediate node known as coding or relay node is used to perform the network coding within the whole network. All transmissions among the nodes in the networks considered the use of MIMO technique.

2008

Abstract Network coding has recently attracted a lot of interest from the research community, mainly due to its simplicity of application and the large number of applications it can be suited for. Research in network coding started on wired networks, but the researchers soon came to realize that the inherent properties of the wireless medium render it a fertile ground for the application of network coding, and the resulting efforts mainly targeted bidirectional traffic scenarios.

Proceedings of the 13th annual ACM international conference on Mobile computing and networking - MobiCom '07, 2007

Network coding is seen as a promising technique to improve network throughput. In this paper, we study two important problems in localized network coding in wireless networks, which only requires each node to know about and coordinate with one-hop neighbors. In particular, we first establish a condition that is both necessary and sufficient for useful coding to be possible. We show this condition is much weaker than expected, and hence allows a variety of coding schemes to suit different network conditions and application preferences. Based on the understanding we establish, we are able to design a robust coding technique called loop coding that can improve network throughput and TCP throughput simultaneously.

2012 International Symposium on Telecommunication Technologies (ISTT)

Network Coding is a method that effectively combines several packets from different sources and broadcasts the combined packet to several destinations in single transmission time slot. Each destination is capable to extract the intended information by decoding from a common packet. In short, network coding is a method that improves the throughput for wireless networks and wired networks. However, while it increases the throughput of networks, it also causes side effects such as complexity of packets management and increased delay for coding opportunity. In this paper, genetic algorithm is proposed to optimize the resources for network coding. Genetic algorithm will search for suitable routes to the destination according to the desired throughput with a desired multicast rate. The simulation results show that the average end to end delay of network after minimizing coding nodes is less than normal network coding.

2006

Network coding is a novel technique introduced to improve the throughput of the network. It is used in many areas such as internet, file download, wireless mesh networks, sensor networks. The main benefits of network coding are increasing the throughput reducing the delay, enhance robustness and adaptability. In this paper we discuss the concept of network coding, how it does, its areas of use and benefits. We also evaluate the gain obtained in different topologies using network coding, with different offered loads.

International Journal of Computer Applications, 2016

Network coding is a collection of techniques in which a node is allowed to combine, encode and send one or more packets as a single encoded packet instead of sending individually. It improves throughput, packet delivery ratio and efficiency of the system. The inherent broadcasting nature of wireless mediums helps us to adopt network coding very easily. At the same time, as it reduces the number of transmissions, it reduces the probability of various losses due to transmission impairments, channel contentions and route failures. This paper discusses various well known network coding schemes.. Network coding is broadly classified into global and local network coding. Network coding is also classified into binary-Xor based and random linear coding based network coding. Further to these, based upon the applications, Network coding schemes are classified for unicast, multicast and broadcast applications. In each of these categories, network coding is explained in the reference of inter-session network coding and intra-session network coding.

Wireless networks are one of the most essential components of the communication networks. In contrast to the wired networks, the inherent broadcast nature of wireless networks provides a breeding ground for both opportunities and challenges ranging from security to reliability. Moreover, energy is a fundamental design constraint in wireless networks. The boom of wireless network is closely coupled with the schemes that can reduce energy consumption. Network coding for the wireless networks is seen as a potential candidate scheme that can help overcome the energy and security challenges while providing significant benefits. This paper presents a basic model for formulating network coding problem in wireless setting. Since the optimal solution to wireless network coding is NP (nondeterministic polynomial-time)-hard, we intend to explore the impact of different parameters with random and non-random solutions. We present extensive simulation to show the strength of random network coding scheme in general wireless network scenarios. This study provide a comprehensive insight into the limits of wireless network coding.