Cooperative wireless channel characterization and modeling: application to body area and cellular networks

• Main Author: Liu, Lingfeng
• Other Authors: De Doncker, Philippe
• Format: Doctoral Thesis
• Language: fr
• Published: Universite Libre de Bruxelles 2012
• Subjects: Electricité; Sciences exactes et naturelles; Wireless communication systems; Wireless sensor networks; Transmission sans fil; Réseaux de capteurs sans fil; visibility region; capacity; channel modeling; cooperative wireless communication; multiple cylinder scattering; Doppler spectrum; 2.4 GHz; IEEE 802.15.6; UWB; COST 2100 channel model; MIMO; cooperative relay; cluster; DMC; BAN; body area network; distributed MIMO; diversity; polarization; MPC; on-body channel; dynamic body scattering; surface wave; fading; shadowing; pathloss; cross-channel correlation
• Online Access: http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209722

Cooperative wireless communication is an attractive technique to explore the spatial channel resources by coordination across multiple links, which can greatly improve the communication performance over single links. In this dissertation, we study the cooperative multi-link channel properties by geometric approaches in body area networks (BANs) and cellular networks respectively.<p><p>In the part of BANs, the dynamic narrowband on-body channels under body motions are modeled statistically on their temporal and spatial fading based on anechoic and indoor measurements. Common body scattering is observed to form inter-link correlation between links closely distributed and between links having synchronized movements of communication nodes. An analytical model is developed to explain the physical mechanisms of the dynamic body scattering. The on-body channel impacts to simple cooperation protocols are evaluated based on realistic measurements. <p><p>In the part of cellular networks, the cluster-level multi-link COST 2100 MIMO channel model is developed with concrete modeling concepts, complete parameterization and implementation methods, and a compatible structure for both single-link and multi-link scenarios. The cluster link-commonness is introduced to the model to describe the multi-link properties. The multi-link impacts by the model are also evaluated in a distributed MIMO system by comparing its sum-rate capacity at different ratios of cluster link-commonness. === Doctorat en Sciences de l'ingénieur === info:eu-repo/semantics/nonPublished