Socket Not Work On Windows Phone 8

hi, I want to build A Online Game, I used tcp socket to connect,it can work on Android,PC. but cannot work on wp8,there is many unkown method tips,like:

System.Int32 System.Net.Sockets.Socket::get_Available() doesn't exist in target framework System.Int32 System.Net.Sockets.Socket::Send(System.Byte[]) doesn’t exist in target framework.
System.Int32 System.Net.Sockets.Socket::Receive(System.Byte)` doesn’t exist in target framework

what should I do?

WP8 API Socket 类 (System.Net.Sockets) | Microsoft Learn 不支持,需要重新实现