With the rapid development of the WLAN,the 802. 11 s mesh network is emerging.Reliability,adaptability and scalability are the most important attributes of a me
Dynamic alliance(DA),namely,virtual corporations (VCs),is an enterprise management method. It means a temporary union formed by some independent commercial proc
The third-generation mobile system,or Universal Mobile Telecommunication System(UMTS),offers IP-based multimedia applications and services with end-to -end QoS