Mobile Networks:Transmission Scheme 上浒充通大￥ SHANGHAI JIAO TONG UNIVERSITY TTL(time to live):the number of hops that the packet has been forwarded. SYN(synchronize):preamble for data-flows synchroni- zation period Ab-1 period入b+i the initiation of sessionsIII is synchronized at the beginning of a period the TTL expires and the packet is dropped、 II S:Source R:Relay D:Destination time SYN Other fields k slots per period Mobility Increases the Connectivity of K-hop Clustered Wireless Networks 11
11 Mobile Networks: Transmission Scheme ❑ TTL (time to live): the number of hops that the packet has been forwarded. ❑ SYN (synchronize): preamble for data-flows synchronization Mobility Increases the Connectivity of K-hop Clustered Wireless Networks
Mobile Networks:Routing Strategy 上浒充通大￥ SHANGHAI JIAO TONG UNIVERSITY Direct delivery to the cluster head without relay hold the packet forward to a cluster head and complete a session hold the packet mobile cluster member cluster head position in movement Mobility Increases the Connectivity of K-hop Clustered Wireless Networks 12
12 Mobile Networks: Routing Strategy ❑ Direct delivery to the cluster head without relay Mobility Increases the Connectivity of K-hop Clustered Wireless Networks
Clustered Network Models 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITY For stationary k-hop clustered networks,we say that a cluster member is connected if it can reach a cluster head within k hops. For mobile clustered networks,a cluster member is connected if it can reach a cluster head within k slots. If all the cluster members in a network are connected,we define that the network has full connectivity. Mobility Increases the Connectivity of K-hop Clustered Wireless Networks 13
13 Clustered Network Models ❑For stationary k-hop clustered networks, we say that a cluster member is connected if it can reach a cluster head within k hops. ❑For mobile clustered networks, a cluster member is connected if it can reach a cluster head within k slots. ❑If all the cluster members in a network are connected, we define that the network has full connectivity. Mobility Increases the Connectivity of K-hop Clustered Wireless Networks