Cooperative Opportunistic Routing Using Transmit Diversity in Wireless Mesh Networks

Kurth, Mathias; Zubow, Anatolij; Redlich, Jens-Peter

doi:10.1109/infocom.2008.188

Cited by 64 publications

(15 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The first access is based on the number of transitions (Expected Transmission Count (ETX), Expected Any-Path Transmission (EAX)) which accounts for the specific characteristics of the opportunistic paradigm [10]. Other algorithms are based on a link-state algorithm for the unconstrained selection based on the Dijkstra algorithm [11]. Most methods are based on generalizing the Bellman-Ford algorithm and they prove its optimality [12,13].…”

Section: Relay Node Selection and Main Motivation In Hybridmentioning

confidence: 99%

Cooperation between Trust and Routing Mechanisms for Relay Node Selection in Hybrid MANET-DTN

Papaj

Dobos²

2016

Mobile Information Systems

View full text Add to dashboard Cite

Today's mobile networks require integration of the different networks in order to transport data between mobile devices. The main problems of all networks occur if the communication paths are disconnected for a short time. The hybrid MANET-DTN is an evolution of the Mobile Ad Hoc Networks (MANET) and Delay/Disruption Tolerant Network (DTN) and it gives the possibilities of data transport between the disconnected islands of the nodes. The key problem is how to select reliable and secure nodes to transport messages between isolated islands with limited connectivity. The selection of the relay nodes is a critical factor because the data are transported via these devices in hostile environments. Two algorithms for a relay node selection based on trust are introduced. These algorithms are activated if the connections are disrupted. The selected relay nodes transport data across the disconnected environment via store-carry-forward mode. The proposed algorithms enable selecting reliable relay nodes based on collecting routing information and contact history. We introduce the network performance analyses of these algorithms. The main idea of the analyses is studying how the algorithms can affect the behaviour of the routing and forwarding mechanisms in the simulator OPNET modeler.

show abstract

Section: Relay Node Selection and Main Motivation In Hybridmentioning

confidence: 99%

Cooperation between Trust and Routing Mechanisms for Relay Node Selection in Hybrid MANET-DTN

Papaj

Dobos²

2016

Mobile Information Systems

View full text Add to dashboard Cite

show abstract

“…Cooperative opportunistic routing using transmit diversity (TDiCOR) [18] proposes an approach that uses transmit diversity to send redundant packets to the next intermediate node. TDiCOR observes that with multiple copies of the same packet transmitted from a set of senders, the SINR should be improved at the one-hop receiver and the protocol is not designed to extend transmission range.…”

Section: Related Workmentioning

confidence: 99%

A Cooperative Diversity-Based Opportunistic Virtual MISO (OVM) Protocol for Multi-Hop Wireless Networks

Nguyễn¹,

Perkins²,

Obeng³

2012

SWCC

View full text Add to dashboard Cite

Wireless communications are highly errorprone due to inherent wireless channel effects, which include interference, multi-path fading, and noise. The conventional approach to reducing the effects of frequent channel errors is to attempt retransmitting the corrupted frames. This solution however introduces long end-to-end delay and channel usage inefficiency, especially in multihop wireless networks. In this work, we introduce the cooperative diversity-based opportunistic virtual MISO (Multiple-Input-Multiple-Output) approach to alleviate the problem and to improve the overall performance in multihop wireless networks. Our approach allows neighboring nodes to effectively share their available resources when there is an opportunity to participate. Our observation showed that multi-hop wireless networks consist of low and high quality links. In the low-quality links, we utilize spatial-diversity property that allows a wireless node with the highest delivery probability to relay data frames to the next hop. In the high-quality links, when there are more than one nodes successfully receiving the same data frame, we utilize space-time block codes (STBC) to extend the transmission range to deliver data frames up to two hops away. By proposing the approach described above, available network resources are always utilized to improve the overall performance. OVM provides an effective and simple design solution. Simulation results show that OVM is able to improve end-to-end network performance by up to eighty-six percent over previous works.

show abstract

“…Network coding (NC) is an approach pioneered by Ahlswede et al [14], with which a relay node encodes the input packets and outputs the encoded ones. It has been shown that NC offers exciting benefits in terms of throughput, reliability, cost, and delay in wireless networks [15][16][17][18]. Specifically, the reliability gain of NC was studied recently in [7,19,20].…”

Section: Related Workmentioning

confidence: 99%

Utility-Based Joint Routing, Network Coding, and Power Control for Wireless Ad Hoc Networks

Wang

et al. 2011

International Journal of Digital Multimedia Broadcasting

View full text Add to dashboard Cite

Energy saving and high delivery reliability are two essential metrics in wireless ad hoc networks. In this paper, we propose a joint power control and network coding (PCNC) scheme which regulates the transmission power to reduce the overall energy usage and uses network coding to improve reliability by reducing the number of packet retransmissions. To argue for PCNC scheme, we investigate both unicast and multicast routing scenarios. To evaluate routing optimality, we adopt expected utility as a metric, which integrates energy cost, reliability, and benefit value. Based on the expected utility, we explore the optimality in both unicast and multicast routing. For unicast routing, we propose an optimal algorithm. We show the NP-hardness of multicast routing problem, and also design a heuristic solution. Results from simulations demonstrate that PCNC improves the performance in terms of expected utility compared with existing techniques.

show abstract

Cooperative Opportunistic Routing Using Transmit Diversity in Wireless Mesh Networks

Cited by 64 publications

References 14 publications

Cooperation between Trust and Routing Mechanisms for Relay Node Selection in Hybrid MANET-DTN

Cooperation between Trust and Routing Mechanisms for Relay Node Selection in Hybrid MANET-DTN

A Cooperative Diversity-Based Opportunistic Virtual MISO (OVM) Protocol for Multi-Hop Wireless Networks

Utility-Based Joint Routing, Network Coding, and Power Control for Wireless Ad Hoc Networks

Contact Info

Product

Resources

About