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WBN, WPN, WSN, WLAN, and WMN. NCTU/CS Prof. 曾煜棋. Scope. Wireless Sensor Networks (WSN) Wireless Body Area Networks (WBN) Wireless Personal Area Networks (WPN) Wireless Local Area Networks (WLAN) Wireless Multi-hop Ad Hoc Networks (WMN). PSTN/ADSL/WiMAX. Personal Ad Hoc/WPAN/WLAN.
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WBN, WPN, WSN, WLAN, and WMN NCTU/CS Prof. 曾煜棋
Scope • Wireless Sensor Networks (WSN) • Wireless Body Area Networks (WBN) • Wireless Personal Area Networks (WPN) • Wireless Local Area Networks (WLAN) • Wireless Multi-hop Ad Hoc Networks (WMN)
PSTN/ADSL/WiMAX Personal Ad Hoc/WPAN/WLAN WLAN/BT Home Gateway 3G WLAN/WiMAX At home, join home (ad hoc) network In the city, join WWAN/WMAN Wired network WLAN WiMAX/3G Train Ad Hoc BT Gateway Ubiquitous device Ubiquitous device Ubiquitous device Ubiquitous device Ubiquitous device In the office, join group/WLAN network On train, join the moving (ad hoc) network Global Roaming: Application Scenarios
Wireless Mesh Network (Ad Hoc Networks) • A relay-based network enhancements, in metropolitan and wide-are environments. • A simple and low-priced way to realize wireless MAN and WAN MP-to-MP, unicast, multicast and broadcast systems, with or without mobility. • By plenty mesh nodes with shorter distances, high bit rate and ubiquitous communication can be facilitated. • Technology domains: • physical layer, medium access layer, routing protocol, cross-layer optimization, system topologies, and infrastructure deployment.
Application Scenarios Wirelessmesh networkfor residential broadband [Source]: D. Beyer, “Wireless Mesh Networks for Residential Broadband,” Nokia, 2002.
Application Scenarios of WMN Mesh Moves Into the Wireless Office [Source]: J. Wexler, “Mesh Moves Into the Wireless Office,” http://www.computerworld.com/mobiletopics/mobile/technology/, 2002.
Importance of WMN • Facilitating broadband service. • Robust and enhanced coverage. • Low cost. • Low initial investments and incremental deployment. • Minimum cabling cost. • High reliability. • More mesh nodes, more reliable. • WMN/Ad Hoc networks are the basis for: • WSN • WBN • WPN • Home entertainment networks
Conclusions • variety of connections • network heterogeneity • many applications • good opportunity for Taiwan industry