Reconfigurable baseband processing platform for communication systems

Abstract

New trends in wireless communication systems require multi-standard coexistence and high data rates. In order to meet these requirements, we propose a reconfigurable baseband platform with coarse grained heterogeneous execution units and flexible interconnections, which are controlled by configuration information. In addition, we demonstrate the effectiveness of our approach in three sample implementations, namely RFID, WLAN OFDM and MIMO-OFDM systems. The performance results reveal that this platform is flexible enough to handle various baseband operations with good efficiency and at reasonable resource cost. Index Terms-reconfigurable baseband platform, RFID interrogator, WLAN OFDM, MIMO-OFDM

Software Defined Radio architecture using a multicasting Network-on-Chip

“…In the previous implementation, the RCEUs and Data Memory communicate with each other through the global interconnect structure shown in Fig. 2 [12]. The global interconnect architecture of Fig.…”

“…Based on this observation, a reconfigurable platform for SDR communication systems has been proposed [12]. In particular, three different multi-mode implementation examples were mapped onto that architecture.…”

“…Here, we will focus on implementing a flexible MIMO-OFDM system, which will allow the different networkon-chip architectures to be compared and evaluated. 1 shows the block diagram of the reconfigurable baseband platform [12]. The Reconfigurable Execution Core has multiple copies of Reconfigurable Execution Units (RCEUs) which operate as basic functional units for wireless communication systems; a baseband algorithm can be mapped onto one RCEU or, if the algorithm is complex, then it can be mapped onto several RCEUs.…”

“…In particular, we choose the target SDR platform to be a reconfigurable baseband architecture [12] and we apply a recently proposed multicasting NoC architecture that is based on CDMA techniques [13,14]. The functional blocks for the SDR application are mapped onto a star topology CDMA NoC with the inter-block bandwidths modeled using the prior baseband platform.…”