All-IPv6 service interworking gateway

ABSTRACT

Improvements of inter-operability, interface IP and dual mobility function must be investigated to move toward full IP and seamless multimedia applications. An All-IPv6 service architecture that consists of cellular systems and Wireless LAN networks has been constructed. A GPRS/WLAN interworking gateway with an IPv6 facility has been designed and its performance examined in terms of queue length, system throughput, loss rate and delay. The results of the simulation of a 1Mbps WLAN and 144kbps GPRS interworking system show that: (1) the queue length is directly proportional to the traffic load (the length increases to 100 packets in 61 seconds at a rate of increase of around 50% per 30 seconds); (2) if the size of the queue is increased to 100 packets, then the loss rate declines to 0.017, (a longer queue corresponds to a lower loss rate); (3) the size of the queue only weakly influences the system throughput when the queue length is increased; and (4) the average delay is approximately 0.83 second/bit, when the queue size is 100 packets. The delay doubles as the queue size doubles.

REFERENCES

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INDEX TERMS

Primary Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS
      C.2.6 Internetworking
          Subjects: Standards (e.g., TCP/IP)

Additional Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS
      C.2.1 Network Architecture and Design
          Subjects: Packet-switching networks
      C.2.5 Local and Wide-Area Networks
          Subjects: Internet (e.g., TCP/IP)

General Terms:
Algorithms, Performance