This paper focuses on the energy efficient relay selection problem in a cooperative multi-relay network,aims to find the most energy efficient relay node for the source node while ensuring its minimum data rate requir...This paper focuses on the energy efficient relay selection problem in a cooperative multi-relay network,aims to find the most energy efficient relay node for the source node while ensuring its minimum data rate requirement.The interaction between the source node and the relay nodes is modeled as a Vickrey auction game,when the source node broadcasts a cooperation request,the relay nodes compete for the cooperation,and the one with the minimum bid will be chosen which denotes the cost of the source node during the cooperation process,but it only needs to provide the minimum bid provided by the other relay nodes,which can encourage all the relay nodes to give the true bid.Besides,the minimum rate requirement of the source node will be ensured and the relay node taking part in the cooperation will gain some reward and the reward can be maximized by reinforcement learning(RL).展开更多
The number of people playing Massive Multiplayer Online Games （MMOGs） is growing steadily, yet there are limited studies on the social impact that this online activity has. This research, using both quantitative and...The number of people playing Massive Multiplayer Online Games （MMOGs） is growing steadily, yet there are limited studies on the social impact that this online activity has. This research, using both quantitative and qualitative data, focused on whether users of the most popular MMOG, World of Warcraft （WOW）, exhibited behaviors of social capital in their online gaming activity and whether there was any correlation to offiine social capital. The findings indicated that cooperation provided the best indicator to make a correlation about a gamer＇s offiine social capital behaviors. One conclusion, stemming from this is that, in virtual worlds, the added social capital can lead to cronyism and help those in power maintain the status quo.展开更多
基金Supported by the National Natural Science Foundation of China(No.61271182)the National Science Foundation for Young Scientists of China(No.61001115)the Research Fund for the Doctoral Program of Higher Education of China(No.20120005120010)
文摘This paper focuses on the energy efficient relay selection problem in a cooperative multi-relay network,aims to find the most energy efficient relay node for the source node while ensuring its minimum data rate requirement.The interaction between the source node and the relay nodes is modeled as a Vickrey auction game,when the source node broadcasts a cooperation request,the relay nodes compete for the cooperation,and the one with the minimum bid will be chosen which denotes the cost of the source node during the cooperation process,but it only needs to provide the minimum bid provided by the other relay nodes,which can encourage all the relay nodes to give the true bid.Besides,the minimum rate requirement of the source node will be ensured and the relay node taking part in the cooperation will gain some reward and the reward can be maximized by reinforcement learning(RL).
文摘The number of people playing Massive Multiplayer Online Games （MMOGs） is growing steadily, yet there are limited studies on the social impact that this online activity has. This research, using both quantitative and qualitative data, focused on whether users of the most popular MMOG, World of Warcraft （WOW）, exhibited behaviors of social capital in their online gaming activity and whether there was any correlation to offiine social capital. The findings indicated that cooperation provided the best indicator to make a correlation about a gamer＇s offiine social capital behaviors. One conclusion, stemming from this is that, in virtual worlds, the added social capital can lead to cronyism and help those in power maintain the status quo.
