A performance comparison of multi-hop wireless ad hoc network routing protocols
MobiCom '98 Proceedings of the 4th annual ACM/IEEE international conference on Mobile computing and networking
Mobile awareness in a wide area wireless network of info-stations
MobiCom '98 Proceedings of the 4th annual ACM/IEEE international conference on Mobile computing and networking
Efficient integration of multi-hop wireless and wired networks with QoS constraints
Proceedings of the 8th annual international conference on Mobile computing and networking
Proceedings of the 4th ACM international symposium on Mobile ad hoc networking & computing
Using Peer-to-Peer Data Routing for Infrastructure-Based Wireless Networks
PERCOM '03 Proceedings of the First IEEE International Conference on Pervasive Computing and Communications
Proceedings of the 5th ACM international symposium on Mobile ad hoc networking and computing
Routing in multi-radio, multi-hop wireless mesh networks
Proceedings of the 10th annual international conference on Mobile computing and networking
Hybrid WLAN for Data Dissemination Applications
MASCOTS '04 Proceedings of the The IEEE Computer Society's 12th Annual International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunications Systems
Information Raining and Optimal Link-Layer Design for Mobile Hotspots
IEEE Transactions on Mobile Computing
Interference-aware topology control and QoS routing in multi-channel wireless mesh networks
Proceedings of the 6th ACM international symposium on Mobile ad hoc networking and computing
Measurement-based characterization of 802.11 in a hotspot setting
Proceedings of the 2005 ACM SIGCOMM workshop on Experimental approaches to wireless network design and analysis
Proceedings of the 11th annual international conference on Mobile computing and networking
MANET simulation studies: the incredibles
ACM SIGMOBILE Mobile Computing and Communications Review - Special Issue on Medium Access and Call Admission Control Algorithms for Next Generation Wireless Networks.: The Digital Library version of this issue has a corrected special issue title compared to the one in the print version of the issue.
Supporting Cooperative Caching in Ad Hoc Networks
IEEE Transactions on Mobile Computing
Wireless hotspots: current challenges and future directions
Mobile Networks and Applications - Special issue: Wireless mobile wireless applications and services on WLAN hotspots
Multichannel mesh networks: challenges and protocols
IEEE Wireless Communications
On credibility of simulation studies of telecommunication networks
IEEE Communications Magazine
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It is common for hotspots in airports, cafes, and malls to deploy info-stations on their access points to provide local information such as flight schedule, multimedia access, sales and discount deals. The dissemination service, however, is limited by the wireless throughput in hotspots and cannot scale to a large number of users. This paper designs a new architecture that significantly improves the throughput of info-stations. We observe that usually the number of collocated info-stations is smaller than the number of orthogonal channels in IEEE 802.11, leaving some orthogonal channels unused, and thus wasting their capacity. We also observe that many users of an info-station download the same objects. Thus, we advocate an architecture, called hybrid-WLAN (H-WLAN), where mobile nodes can retrieve objects (multimedia content or information) from the info-station in the infrastructure mode, or exploit the idle 802.11 channels to cooperatively share their content with neighboring nodes in an ad-hoc manner. Our H-WLAN contains two components. The first component directs each object request to a nearby ad-hoc node that has the requested object, while avoids overloading any of the nodes. The second component balances the load across channels taking into account the popularity of the disseminated objects. We evaluate our design via simulations. The results show that our H-WLAN improves channel utilization and provides significantly higher throughput.