By Hafez Hadinejad-Mahram, Xiaolong Jiang (auth.), Cambyse Guy Omidyar (eds.)
Mobile and instant Communications provides the newest advancements in cellular and instant examine and the undefined, with a extensive diversity of subject matters together with:
-Ad-hoc networking;
-Power keep an eye on;
-Personal communications;
-Satellite;
-QoS;
-UMTS and instant LANs;
-Handoffs, protection and mobility;
-CDMA and actual layer together with modulation and coding;
-Methods of conversation capabilities together with a number of entry, mistakes keep watch over, movement regulate and routing.
Read or Download Mobile and Wireless Communications: IFIP TC6 / WG6.8 Working Conference on Personal Wireless Communications (PWC’2002) October 23–25, 2002, Singapore PDF
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Additional info for Mobile and Wireless Communications: IFIP TC6 / WG6.8 Working Conference on Personal Wireless Communications (PWC’2002) October 23–25, 2002, Singapore
Example text
System Overview of the proposed Protocol operation It is based on link state routing protocol such as OSPF[7]. Figure 2 shows overview of the system. It is assumed that each mobile terminal is equipped with ad hoc mode wireless LAN and cellular system capability, and both of them support IP (Internet Protocol) . Packet types handled in the protocol are listed as follows. • Hello packet Packet containing network address of the terminal itself. It is exchanged by wireless LAN. • Link state packet Packet containing list of network address of neighbor terminals in wireless LAN.
The On-Demand Multipath routing scheme is presented in [10) as a multipath extension of Dynamic Source Routing (DSR), in which alternate routes are maintained, so that they can be utilized when the primary one fails. It has been shown that the frequency of searching for new routes is much lower if a node keeps multiple paths to the destination. However, the performance improvement of mUltipath routing on the network load balancing has not been studied extensively. M. R. [11] demonstrates that the multipath routing can balance network loads in their recent paper.
2. In the fixed network, control nodes called reflector nodes are provided, and they relay control packets An Efficient Proactive Routing Method/or ... 33 exchanged between terminals. For terminals within coverage of one base station, one reHector node is assigned. Terminals within coverage area of each base station are informed of network address of the reHector node in advance. Operation of the protocol is as follows. Each terminal periodically senses neighbor terminals in wireless LAN by exchanging hello packets, and it generates a link state packet and it sends the packet to the reflector node.