A Novel Random-Access Scheme Based on Cuckoo Filter for Massive Machine Type Communication

• Main Authors: Jaishree Sarojini Philip Sridhar, 潔絲芮
• Other Authors: TSENG, CHIH-CHENG
• Format: Others
• Language: en_US
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/jqrkw5

碩士 === 國立宜蘭大學 === 電子工程學系碩士班 === 106 === The ever-increasing data rate with limited resources has led to the introduction of new schemes to improve the user experience. Traditionally a low number of connections with high data requirements are achieved over a network dealing with the limited amount of connections established between the device and the Base Station (BS) before the device can transmit its data packet. But emerging technologies such as Machine-to-Machine (M2M) communication features present a significant challenge to cellular networks, whose radio access requirement is high. LTE-A involves a high amount of signaling overhead. Therefore, in 3GPP it was proposed an approach to optimize the connection establishment by reducing signaling overhead using filtering system and also to arrange the connection requests from the devices to base station and to avoid the collision at the base station. We present a random-access method inspired on cuckoo filters that are found to better suited for Massive Machine-Type Communications (mMTC) than other filter schemes. Each accessing device sends a signature during the contention process. A signature is constructed using the cuckoo filtering insert hash method and contains information about the device identity and the connection establishment requirements. A Cuckoo filter-based signatures also allows devices seeking permission to access the base station dramatically with high performance by allowing faster signature generation. We conclude that the method proposed has a better average goodput than other methods and can be applied to the massive machine type devices over the 5G technology. The connection established between the base station and the user is made feasible without loss of data and it also minimizes the congestion at the base station during the RRC (Radio Resource Control) stage.