Performance comparison of cellular and multi-hop wireless networks: a quantitative study
Proceedings of the 2001 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Chord: A scalable peer-to-peer lookup service for internet applications
Proceedings of the 2001 conference on Applications, technologies, architectures, and protocols for computer communications
A scalable content-addressable network
Proceedings of the 2001 conference on Applications, technologies, architectures, and protocols for computer communications
MobiHoc '01 Proceedings of the 2nd ACM international symposium on Mobile ad hoc networking & computing
Analyzing the browse patterns of mobile clients
IMW '01 Proceedings of the 1st ACM SIGCOMM Workshop on Internet Measurement
On the sensitivity of cooperative caching performance to workload and network characteristics
SIGMETRICS '02 Proceedings of the 2002 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Propagation and Leader Election in a Multihop Broadcast Environment
DISC '98 Proceedings of the 12th International Symposium on Distributed Computing
Integrating Wireless LAN and Cellular Data for the Enterprise
IEEE Internet Computing
Wireless bandwidth in the making
IEEE Communications Magazine
Video transcoding proxy for 3Gwireless mobile Internet access
IEEE Communications Magazine
Wireless LAN access network architecture for mobile operators
IEEE Communications Magazine
Provisioning multimedia wireless networks for better QoS: RRM strategies for 3G W-CDMA
IEEE Communications Magazine
A perspective on the evolution of mobile communications
IEEE Communications Magazine
Interworking architecture between 3GPP and WLAN systems
IEEE Communications Magazine
Design and implementation of a WLAN/cdma2000 interworking architecture
IEEE Communications Magazine
Challenges in the migration to 4G mobile systems
IEEE Communications Magazine
CEDAR: a core-extraction distributed ad hoc routing algorithm
IEEE Journal on Selected Areas in Communications
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The exponential growth of mobile data users and services places a heavy burden on the limited wireless bandwidth of cellular data networks. The situation will be exacerbated with the advent of high bandwidth multimedia applications for mobile devices. In this paper, we propose an architecture, called the Cellular-based Ad hoc Peer Data Sharing system (CAPS), that can reduce the load on the cellular network while improving the wireless data access latency. In CAPS, mobile hosts in a cellular network form an overlay multi-hop wireless network. This ad hoc network acts as a 'virtual cache' that enables data sharing among mobile hosts. Participating mobiles share the contents of their local caches with other mobiles. A subset of mobile hosts keep track of the location of objects with minimal overhead to facilitate fast location discovery in the peer-to-peer ad hoc network. Using CAPS, popular objects can be obtained over the fast ad hoc channel without accessing the cellular infrastructure, thereby reducing the load on the cellular network and improving data access latency. We evaluate the performance of this proposed architecture through simulations using ns-2, varying control parameters across a variety of scenarios, and find that CAPS reduces the timeouts of the user requests by 70-90% and reduces the traffic at the base station by up to 60%.