Discovery Protocol Based Device To Device Communication

Abstract

D2D communication in cellular networks is direct communication between two mobile users without traversing the Base Station (BS) or core network. In the proposed method the discovery protocol is used for covering a large discovery distance. To recognize the proximity based services such as mobile social networks and mobile marketing using D2Dcommunications, every one of the device should first discover in close proximity devices, which cover mobile applications by using a discovery protocol. The proposed discovery protocol makes use of a dumpy discovery code that contains dense information of mobile applications in a device. A discovery code is generated by using either a hash function or a Bloom filter. When a device receives a discovery code broadcast by one more device, the device can approximately find out the mobile applications in the other device. The proposed protocol is capable of hastily discovering massive number of devices while consuming a relatively small amount of radio resources.