ACM Transactions on Computer Systems (TOCS)
A charging and rewarding scheme for packet forwarding in multi-hop cellular networks
Proceedings of the 4th ACM international symposium on Mobile ad hoc networking & computing
UCAN: a unified cellular and ad-hoc network architecture
Proceedings of the 9th annual international conference on Mobile computing and networking
JANUS: towards robust and malicious resilient routing in hybrid wireless networks
Proceedings of the 3rd ACM workshop on Wireless security
High Throughput Routing in Hybrid Cellular and Ad-Hoc Networks
WOWMOM '05 Proceedings of the Sixth IEEE International Symposium on World of Wireless Mobile and Multimedia Networks
Portcullis: protecting connection setup from denial-of-capability attacks
Proceedings of the 2007 conference on Applications, technologies, architectures, and protocols for computer communications
Evolution of wireless data services: IS-95 to cdma2000
IEEE Communications Magazine
IEEE Communications Magazine
On location-restricted services
IEEE Network: The Magazine of Global Internetworking
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Previous simulations have shown substantial performance gains can be achieved by using hybrid cellular and wireless LAN (WLAN) approaches [1]. In a hybrid system, a proxy in an area of strong connectivity (and therefore higher bandwidth) forwards traffic on behalf of a client in an area of weaker connectivity (and therefore lower bandwidth). The proxy routes traffic between the base station (over a cellular link) and the client (over a WLAN). Such approaches have had limited practical applicability due to substantial security risks, including eavesdropping, intentional performance degradation and cheating the incentive schemes. The Secure Unified Cellular Ad Hoc Network (SUCAN) protocol is designed to address these risks, allowing the deployment of hybrid networks. SUCAN uses incentives and cryptographic techniques to eliminate cheating by self-interested hosts, while limiting the damage caused by malicious hosts. We implemented SUCAN on Verizon's Broadband Access network. To our knowledge, this is the first real-world implementation of a hybrid cellular network protocol. Our implementation results show that the SUCAN system can provide substantial performance increases and protects against performance degradation even in the presence of malicious behavior.