Paper Info
Title
Opportunistic Forwarding Using Rateless Codes In Ofdma Multihop Networks
Abstract
A major challenge for data transmission in wireless multihop networks is to efficiently utilize the present channel capacity provided by the variety of links within the network. To achieve this, we combine the concept of opportunistic routing with rateless coding and Orthogonal Frequency Division Multiple Access (OFDMA). Opportunistic routing exploits the broadcast nature of wireless transmissions by considering multiple nodes as potential next forwarder of a certain data packet and by selecting the next forwarder after transmission instead of prior to it. Rateless coding enables mutual information accumulation at subsequent nodes of a multihop transmission path which overhear the transmissions. Using a predefined selection of nodes as a support structure, consisting of stages of fully connected transmitters and receivers, allows for a local cooperation among the nodes. Thereby, an unnecessary and wasteful forwarding of data duplicates can be avoided. Furthermore, based on OFDMA, the nodes can exploit the diversity of links within each stage by an adaptive local resource allocation. For the operation of this concept, we propose suitable algorithms for scheduling of data packets and resource allocation and show that the proposed scheme provides significant throughput gains compared to forwarding without overhearing at subsequent nodes and forwarding along a unipath.
Year
Venue
Field
2016
2016 IEEE 84TH VEHICULAR TECHNOLOGY CONFERENCE (VTC FALL)
Data transmission,Computer science,Scheduling (computing),Network packet,Orthogonal frequency-division multiple access,Computer network,Resource allocation,Throughput,Channel capacity,Packet forwarding,Distributed computing
DocType
ISSN
Citations 
Conference
2577-2465
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Fabian Hohmann101.35
Anja Klein217389.48