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In this paper, a low latency IFFT architecture for 3rd Generation Partnership Project (3GPP) LTE is proposed. To reduce the latency, we reorder the IFFT input data. By using the reordered input data, both the latency and the memory in stage 1 are significantly reduced. Simulation results show that the latency for 2048-point IFFT is reduced about 42% compared with conventional architecture. The proposed...
Recently, polar codes have received much attention due to their simple structure and low decoding complexity. However, because of the long decoding latency, polar codes are still not suitable for real-time applications. In this paper, by the analysis of the position of frozen bits and the architecture of conventional SC decoder, we present an efficient SC decoder architecture. Using the proposed architecture,...
Polar codes have recently become increasingly popular due to their simple structure and low decoding complexity. However, polar codes are still not suitable for real-time applications because of the long decoding latency. In this paper, by analysis of the conventional architecture of SC decoder, a low latency SC decoder architecture is proposed. Using the proposed architecture, the decoding latency...
Controller area network (CAN) is the most extensively used embedded network protocol in vehicles. However, CAN is vulnerable to malicious security attacks as it enables unauthorized access in a relatively straightforward manner. In the last ten years, security attacks in vehicles have been increasing and reported in several documents. In this paper, we propose a security protocol for CAN system based...
Polar codes are the first constructive and provable capacity-achieving codes. Compared to conventional successive cancellation (SC) decoders, SCL (list SC) decoders have performances very close to those of the maximum-likelihood (ML) decoders. In SCL decoders with large list size, however, the hardware increase is a severe problem since an SCL decoder with list size L consists of L copies of SC decoders...
The controller area network (CAN) systems have been successfully applied in many fields due to its high reliability and cost efficiency. CAN was designed for multiplexing communication between electronic control units (ECUs) in vehicles and many high-level industrial control applications. When a CAN bus is overloaded by a large number of ECUs connected to the CAN bus, both the waiting time and the...
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