Previous Works Motivation 上浒充通大￥ The theory of social networks:social features SHANGHAI JIAO TONG UNIVERSITY Social feature ll social relation The social relation reflects how users select friends in the network.From the experiments in [9][10]about how people selected friends,some feasible social relation models are proposed such as distance-based model [9]and rank-based model [10]. [9]B.Azimdoost,H.Sadjadpour,J.Garcia-Luna-Aceves,"The Impact of Social Groups on The Capacity of Wireless Networks,"in Network Science Workshop,pp.30-37,2011. [10]R.Kumar,D.Liben-Nowell,et.al,"Theoretical Analysis of Geographic Routing in Social Networks,"in MIT-CSAIL- TR-2005-040,Jun.2005. 6
Previous Works & Motivation The theory of social networks: social features ➢ Social feature II : social relation 6 The social relation reflects how users select friends in the network. From the experiments in [9] [10] about how people selected friends, some feasible social relation models are proposed such as distance-based model [9] and rank-based model [10]. [9] B. Azimdoost, H. Sadjadpour, J. Garcia-Luna-Aceves, “The Impact of Social Groups on The Capacity of Wireless Networks,” in Network Science Workshop, pp. 30-37, 2011. [10] R. Kumar, D. Liben-Nowell, et.al, “Theoretical Analysis of Geographic Routing in Social Networks,” in MIT-CSAILTR-2005-040, Jun. 2005
Previous Works Motivation 上浒充通大学 The importance of multicast study SHANGHAI JIAO TONG UNIVERSITY What is multicast? One source to m destinations 00 a ● O o 0 a Xiangyang Li [11] [11]X.Li,"Multicast Capacity of Large Scale Wireless Ad Hoc Networks",IEEE/ACM Trans.Networking,Vol.17,No. 3,pp.950-961,Jan.2008.(citation:132) 7
Previous Works & Motivation The importance of multicast study ➢ What is multicast? One source to m destinations 7 Xiangyang Li [11] [11] X. Li, “Multicast Capacity of Large Scale Wireless Ad Hoc Networks”, IEEE/ACM Trans. Networking, Vol.17, No. 3, pp. 950-961, Jan. 2008.(citation:132)
Previous Works Motivation 上浒充通大￥ The multicast uses SHANGHAI JIAO TONG UNIVERSITY Video sources Video clients Live Video distribution ntemet and mobile networks Collaborative groupware Periodic Data Delivery- Stock quotes,sports scores, "Push"technology magazines,newspapers,adverts Hub site Any Applications with Server/Web-site multiple receivers replication (1-to-many) Branch Branch office Branch office office Resource Discovery Reducing Network/ more than multiple Resource Overhead point-to-point flows Distributed Interactive Wargames,virtual reality Simulation (DIS) 8
Previous Works & Motivation The multicast uses 8 Any Applications with multiple receivers (1-to-many) Collaborative groupware Reducing Network/ Resource Overhead Live Video distribution Server/Web-site replication Resource Discovery Periodic Data Delivery – "Push" technology Stock quotes, sports scores, magazines, newspapers, adverts more than multiple point-to-point flows Distributed Interactive Simulation (DIS) Wargames, virtual reality Video sources Internet and mobile networks Video clients Hub site Branch office Branch office Branch office
Previous Works Motivation 上浒充通大 Our view on the multicast social networks SHANGHAI JIAO TONG UNIVERSITY According to the mentioned theory of social networks and multicast,we can conclude the relation between social features and multicast as follow: The social group size determines the multicast scale. The social relation determines the distribution of multicast destinations. The social features (social group size and relation)determine the network features(multicast scale and destination distribution)and further impact the network performance such as capacity. We investigate the impact of social features on network capacity in this paper. 9
Previous Works & Motivation Our view on the multicast social networks ➢ According to the mentioned theory of social networks and multicast, we can conclude the relation between social features and multicast as follow: ✓ The social group size determines the multicast scale. ✓ The social relation determines the distribution of multicast destinations. 9 We investigate the impact of social features on network capacity in this paper. ➢ The social features (social group size and relation) determine the network features (multicast scale and destination distribution) and further impact the network performance such as capacity
Previous Works Motivation 上浒充通大￥ Main challenge and contribution SHANGHAI JIAO TONG UNIVERSITY Multicast group size Power-law This work distribution (Social network based) 1 Fixed Multicast Start point group size destination (X.Li's work [11]) distribution Uniform Rank-based model distribution (Social network based) 10
Previous Works & Motivation Main challenge and contribution 10 Start point (X. Li’s work [11]) Multicast group size Multicast destination distribution Fixed group size Uniform distribution This work Power-law distribution Rank-based model (Social network based) (Social network based)