Implementation of Baseband, Link Manager Protocol and Security Layers of Bluetooth Protocol Stack

This paper focuses on the VLSI implementation of Baseband layer, Security Manager and Link manager, using Verilog HDL as the modelling tool. The baseband layer is mainly responsible for handling the data packets. Its operation is divided into two basic modes viz. Master mode and Slave mode. When device operates in master mode, it actively initiates communication while in slave mode it passively waits for contact. The Security manager layer provides security on three level of operation. The user can decide on which level of security is needed. SAFER+ encryption is used for the provision of security and is implemented using E21 and E22. Enhanced control and throughput has been achieved through multiple control units subdividing the tasks. The proposed architecture provides reusability of the system architecture by the Encryption and Decryption Modules.