Abstract
Interleaver module is an important part of modern mobile communication system. It plays an important role in reducing bit error rate and improving transmission efficiency over fading channels. In 5G NR (5th Generation New Radio) standards, LDPC (low-density parity-check) and polar channel codes are employed for data channels and control channels, respectively. If multiple interleavers are implemented separately for them, the cost increases significantly. To address this issue, a hardware multiplexing scheme for channel interleavers based on LDPC and polar codes is proposed in this paper. Firstly, the formulas for the processes of the control channel interleaving and data channel interleaving are derived with respect to 5G NR standard. Then, the hardware implementation structures of the two interleavers are given. Subsequently, hardware reuse is proposed by sharing the similar or identical parts between the two hardware structures. Simulation results verify the correctness of our proposed scheme and demonstrate that it can realize the hardware sharing of the two kinds of channel interleavers to reduce the cost of silicon.
Highlights
In the modern mobile communication, some important technologies are used, such as interleaving [1], offloading [2], spectrum sensing [3, 4], partitioning [5], hardware reusing, and resource sharing and allocation [6, 7]
The hardware equipment based on multimode and fast-switching has been studied for channel interleavers in WLAN, WiMAX (Worldwide Interoperability for Microwave Access, which includes IEEE 802.16e standard), 3GPPWCDMA (3rd Generation Partnership Project-Wideband Code-Division Multiple Access), 3GPP-LTE (3GPP-longterm evolution), and DVB-T/H (Digital Video Broadcasting-Terrestrial/Handheld) standards [1]; multistandard hardware interleaver structure was proposed for HSPA (High Speed Packet Access) evolution, 3GPP-LTE, WiMAX, WLAN, and DVB-T/H in [8]
A parallel architecture for decoding reconfigurable interleavers was proposed to support HSPA evolution, DVB-SH (DVB-Satellite Services to Handhelds), 3GPP-LTE, and WiMAX standards [9]. e issues of address conflicts for hardware sharing were analyzed and resolved in [10]. Among these multistandard interleaver implementations, it is common to simplify and improve the interleaver algorithm of various standards such that the hardware implementation structure becomes simple and easy to reuse [11]. en, the identical hardware structure is reused by careful comparison to reduce the cost of silicon for multistandards [12]. These works cover 2G, 3G, and even 4G standards [13], the latest 5G standard has not Security and Communication Networks been studied in them. erefore, with respect to the 5G NR standard 3GPP TS 38.212 [14], this paper proposes a scheme of hardware reuse and cost-saving for polar-encoded channel interleaver [15] and LDPC-encoded channel interleaver [16]
Summary
In the modern mobile communication, some important technologies are used, such as interleaving [1], offloading [2], spectrum sensing [3, 4], partitioning [5], hardware reusing, and resource sharing and allocation [6, 7]. E issues of address conflicts for hardware sharing were analyzed and resolved in [10] Among these multistandard interleaver implementations, it is common to simplify and improve the interleaver algorithm of various standards such that the hardware implementation structure becomes simple and easy to reuse [11]. Erefore, with respect to the 5G NR standard 3GPP TS 38.212 [14], this paper proposes a scheme of hardware reuse and cost-saving for polar-encoded channel interleaver [15] and LDPC-encoded channel interleaver [16]. (1) e interleaving schemes of data channel and control channel in 5G NR standard are formulized, and the corresponding hardware structures are given. E structure of the remaining parts of this paper is as follows: in Section 2, we introduce the interleaver schemes for LDPC and polar codes channel.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
