12-07-2010, 09:13 PM
abstract is :
People waste many hours driving each day. Although unavoidable, this time can be very boring to motorists.Similar to people taking mass transit who often pass the time socializing with those around them, motorists could benefit from social interactions if they were given broader social opportunities. Unfortunately, existing Multiparty Voice Communication (MVC) systems do not scale to large numbersof users and do not provide adequate access controls. We present RoadSpeak, a scalable MVC system that allows motorists to automatically join Voice Chat Groups (VCGs) along popularroadways.RoadSpeak achieves interruption free communication through the use of voice chat message buffering, flow control and in-order delivery of voice messages to participants. Motorists, over the years, have tried to socialize in manyways while traveling on roadways. Today, it is quite commonto see motorists engaging in cell phone conversations or calling in to their favorite radio talk shows. Multiparty Voice Communication (MVC) systems, such as CB Radio and modern telephone conferencing systems, enable small groups of people to participate in real-time, simultaneous conversations. The main problem with current MVC systems is that they do not allow meaningful voicebased communication to scale to large numbers of users. To handle social communicationon todayâ„¢s congested roadways, MVC systems must be able to scale to large user groups. Multiparty group formation and discovery is another problem in current MVC systems. For example, CB Radio provides no support for motorists to discover others with whom to socialize. Since CB Radio is broadcast-basedand utilizes well-known channels, anyone who is within broadcast range can join a channel and a conversation, without restriction. Unfortunately, open channels are a poor substitute for social group discovery and formationRoadSpeak, a VSN(virtual social network)-based system that allows large groups of motorists to socialize andcommunicate with each other by automatically joining Voice Chat Groups (VCGs) formed along popular roadways. Aside from interests, on which traditional OSNs rely, a RoadSpeak group enforces time and location in its profile definition, which may limit membership to specified roadways and time slots. A RoadSpeak VCG profile is defined by a group owner when the VCG is created and users are admitted to the groups based upon matches between user and VCG profiles.We have implemented a prototype RoadSpeak system. A client runs on a userâ„¢s smart phone and geo-matches her location with the VCGs in which she is interested. The user is then automatically logged on to one of her groups of interest, and can participate in that groupâ„¢s discussion via voice chata traditional MVC system, audio collisions effectively limit the number of active participants in a group,occurring when participants speak simultaneously or when one participant is interrupted by another.but in case of road speak system such audio collission are avoided. RoadSpeak allows individual participants to submit voice chat messages in an interruption-free manner. In this way, multiple participants may submit messages concurrently, thereby eliminating audio collisions.Using the Vehicular Social Networks, different people traveling along the same roadways at the sametime can form virtual mobile communities called VSN ,which creates a voicechat system that allows `users to automatically join Voice Chat Groups along these roadwaysWe presented mechanisms to discover andform these groups, which utilize both time and locality, along with user interests.
if anyone can help me out ,i would be very grateful
