Generalized Adaptive Network Coding Aided Successive Relaying for Noncoherent Cooperation

A generalized adaptive network coding (GANC) scheme is conceived for a multi-user, multi-relay scenario, where the multiple users transmit independent information streams to a common destination with the aid of multiple relays. The proposed GANC scheme is developed from adaptive network coded cooper...

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Vydané v:	IEEE transactions on communications Ročník 61; číslo 5; s. 1750 - 1763
Hlavní autori:	Li Li, Li Wang, Hanzo, L.
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	New York, NY IEEE 01.05.2013 Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Predmet:	Adaptive systems Applied sciences Channels Coding Coding, codes Communications networks Cooperation Cooperative systems Detection, estimation, filtering, equalization, prediction Encoding Exact sciences and technology Flexibility Information, signal and communications theory Multiaccess communication Network coding Network topologies Networks non-coherent cooperation Organization and planning of networks (techniques and equipments) Pilots Relaying Relays Signal and communications theory Signal, noise successive relaying Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Throughput Tradeoffs Transmission and modulation (techniques and equipments) Relaying Parameter estimation Relay Network architecture Information rate Data transmission Iterative method Flexibility Time variation Coherent detection Duplex process Topological structure Channel estimation Cross-layer approach Non coherent detection Electric power consumption Traffic control Minimum energy successive relaying Multiple access Packet switching Flow rate regulation Teletraffic Channel coding Information transmission Adaptive coding Relay channel non-coherent cooperation Network coding Reliability Transmission loss
ISSN:	0090-6778, 1558-0857
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Shrnutí:	A generalized adaptive network coding (GANC) scheme is conceived for a multi-user, multi-relay scenario, where the multiple users transmit independent information streams to a common destination with the aid of multiple relays. The proposed GANC scheme is developed from adaptive network coded cooperation (ANCC), which aims for a high flexibility in order to: 1) allow arbitrary channel coding schemes to serve as the cross-layer network coding regime; 2) provide any arbitrary trade-off between the throughput and reliability by adjusting the ratio of the source nodes and the cooperating relay nodes. Furthermore, we incorporate the proposed GANC scheme in a novel successive relaying aided network (SRAN) in order to recover the typical 50% half-duplex relaying-induced throughput loss. However, in support of the coherent detection, in addition to carrying out all the relaying functions, the relays have to estimate the Source-to-Relay channels, which imposes a substantial extra energy consumption and bit rate reduction owing to the inclusion of pilots. Hence noncoherent detection is employed for eliminating the power-hungry channel estimation. Finally, we intrinsically amalgamate our GANC scheme with the joint network-channel coding (JNCC) concept into a powerful three-stage concatenated architecture relying on iterative detection, which is specifically designed for the destination node (DN). The proposed scheme is also capable of adapting to rapidly time-varying network topologies, while relying on energy-efficient detection.
Bibliografia:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 ObjectType-Article-2 ObjectType-Feature-1 content type line 23
ISSN:	0090-6778 1558-0857
DOI:	10.1109/TCOMM.2013.022713.120339