Prestaciones de las Redes Ad Hoc Inalámbricas: Teoría a través de Capas

The current PhD Thesis, carried out in the scope of Wireless Ad Hoc Networks, is an analytic study of the MHWN (Multihop Wireless Network) performance, mainly in terms of the end-to-end BER (Bit Error Rate). This is a crosslayer analysis which takes into account the Physical, Link and Network layers...

Descripción completa

Detalles Bibliográficos
Autor: Morgado Reyes, Eduardo
Tipo de recurso: tesis doctoral
Fecha de publicación:2009
País:España
Institución:Universidad Rey Juan Carlos
Repositorio:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
OAI Identifier:oai:burjcdigital.urjc.es:10115/2425
Acceso en línea:http://hdl.handle.net/10115/2425
Access Level:acceso abierto
Palabra clave:Telecomunicaciones
3325 Tecnología de las Telecomunicaciones
id ES_b5d6bb0fb560827cbf39fd2ff77b96c6
oai_identifier_str oai:burjcdigital.urjc.es:10115/2425
network_acronym_str ES
network_name_str España
repository_id_str
spelling Prestaciones de las Redes Ad Hoc Inalámbricas: Teoría a través de CapasMorgado Reyes, EduardoTelecomunicaciones3325 Tecnología de las TelecomunicacionesThe current PhD Thesis, carried out in the scope of Wireless Ad Hoc Networks, is an analytic study of the MHWN (Multihop Wireless Network) performance, mainly in terms of the end-to-end BER (Bit Error Rate). This is a crosslayer analysis which takes into account the Physical, Link and Network layers, included in the OSI (Open System Interconnection) model. The end-to-end BER is a fundamental parameter for measuring of the MHWN performance; however, it is still undetermined in an analytical way when the effects from different layers interact and, so, this is the main motivation for this Thesis. Our study begins with the characterization, in an accurate analytical way, of the end-to-end BER with the only consideration of the Physical layer effects. Next, not taking into account interferences (Link layer) in the Ad Hoc Network yet, we incorporate the effects of the routing protocol (Network layer) through a directivity analytical model. To complete our multilayer analysis, we propose an analytical model to calculate the multihop interference power in MHWN. Using this multilayer model, which takes into account the interactions among the previously mentioned layers, we deduce expressions for the end-to-end BER in presence of multihop interference, according to the number of hops which make up the route, as well as the Euclidean distance between its extremes. Additionally, to obtain such expressions, we formulate the models which relate both scales (number of hops and distance between extremes) of the MHWN routes. Once this analysis of performance in ``conventional'' communications is carried out, we study two novel scopes in communication networks with the objective of decreasing the end-to-end BER in MHWN: Cooperative Communication and Network Coding. With reference to Cooperative Communication, we propose two distributed DD (Double Differential) coding schemes to solve the problem of performance decrease with the appearance of CFO (Carrier Frequency Offset) among cooperative nodes and the destination one. Regarding Network Coding, we propose a coding algorithm adequate for dense and multihop WSN (Wireless Sensor Network), which decreases BER through a distributed coding using LDPC (Low Density Parity Check) codes.Teoría de la Señal y Comunicaciones200920092009info:eu-repo/semantics/doctoralThesisapplication/pdfhttp://hdl.handle.net/10115/2425reponame:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlosinstname:Universidad Rey Juan CarlosEspañolinfo:eu-repo/semantics/openAccessoai:burjcdigital.urjc.es:10115/24252026-06-24T12:48:17Z
dc.title.none.fl_str_mv Prestaciones de las Redes Ad Hoc Inalámbricas: Teoría a través de Capas
title Prestaciones de las Redes Ad Hoc Inalámbricas: Teoría a través de Capas
spellingShingle Prestaciones de las Redes Ad Hoc Inalámbricas: Teoría a través de Capas
Morgado Reyes, Eduardo
Telecomunicaciones
3325 Tecnología de las Telecomunicaciones
title_short Prestaciones de las Redes Ad Hoc Inalámbricas: Teoría a través de Capas
title_full Prestaciones de las Redes Ad Hoc Inalámbricas: Teoría a través de Capas
title_fullStr Prestaciones de las Redes Ad Hoc Inalámbricas: Teoría a través de Capas
title_full_unstemmed Prestaciones de las Redes Ad Hoc Inalámbricas: Teoría a través de Capas
title_sort Prestaciones de las Redes Ad Hoc Inalámbricas: Teoría a través de Capas
dc.creator.none.fl_str_mv Morgado Reyes, Eduardo
author Morgado Reyes, Eduardo
author_facet Morgado Reyes, Eduardo
author_role author
dc.subject.none.fl_str_mv Telecomunicaciones
3325 Tecnología de las Telecomunicaciones
topic Telecomunicaciones
3325 Tecnología de las Telecomunicaciones
description The current PhD Thesis, carried out in the scope of Wireless Ad Hoc Networks, is an analytic study of the MHWN (Multihop Wireless Network) performance, mainly in terms of the end-to-end BER (Bit Error Rate). This is a crosslayer analysis which takes into account the Physical, Link and Network layers, included in the OSI (Open System Interconnection) model. The end-to-end BER is a fundamental parameter for measuring of the MHWN performance; however, it is still undetermined in an analytical way when the effects from different layers interact and, so, this is the main motivation for this Thesis. Our study begins with the characterization, in an accurate analytical way, of the end-to-end BER with the only consideration of the Physical layer effects. Next, not taking into account interferences (Link layer) in the Ad Hoc Network yet, we incorporate the effects of the routing protocol (Network layer) through a directivity analytical model. To complete our multilayer analysis, we propose an analytical model to calculate the multihop interference power in MHWN. Using this multilayer model, which takes into account the interactions among the previously mentioned layers, we deduce expressions for the end-to-end BER in presence of multihop interference, according to the number of hops which make up the route, as well as the Euclidean distance between its extremes. Additionally, to obtain such expressions, we formulate the models which relate both scales (number of hops and distance between extremes) of the MHWN routes. Once this analysis of performance in ``conventional'' communications is carried out, we study two novel scopes in communication networks with the objective of decreasing the end-to-end BER in MHWN: Cooperative Communication and Network Coding. With reference to Cooperative Communication, we propose two distributed DD (Double Differential) coding schemes to solve the problem of performance decrease with the appearance of CFO (Carrier Frequency Offset) among cooperative nodes and the destination one. Regarding Network Coding, we propose a coding algorithm adequate for dense and multihop WSN (Wireless Sensor Network), which decreases BER through a distributed coding using LDPC (Low Density Parity Check) codes.
publishDate 2009
dc.date.none.fl_str_mv 2009
2009
2009
dc.type.none.fl_str_mv info:eu-repo/semantics/doctoralThesis
format doctoralThesis
dc.identifier.none.fl_str_mv http://hdl.handle.net/10115/2425
url http://hdl.handle.net/10115/2425
dc.language.none.fl_str_mv Español
language_invalid_str_mv Español
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
instname:Universidad Rey Juan Carlos
instname_str Universidad Rey Juan Carlos
reponame_str BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
collection BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869417396528218112
score 15,812429

Similares en LA Referencia