Physical layer architecture for terahertz wireless network

Abstract

The invention discloses physical layer architecture for the terahertz wireless network. The architecture comprises a transmitting end and a receiving end. The transmitting end comprises a scrambler module, a framer module, a forward error correction (FEC) encoder module, a preamble module, a high-speed transceiver module, an on-off keying (OOK) modulation module and a terahertz oscillator; and the reception end comprises a reception processing module corresponding to the transmitting end, as well as a direct detector, a high-speed transceiver and CDR module, a frame synchronizer module, an FEC decoder module, a de-framer module and a descrambler module. The physical layer architecture can be used to directly process bit data flow, complex digital signal processing is avoided, the architecture can be applied to single-channel terahertz high-speed wireless network as high as 100Gbps magnitude, the structure is simpler, convenience is provided for design of special processors, and the power consumption and size are easy to control; and the physical layer architecture can be completely parallel in technical feasibility, can be realized on the basis of a present horizontal FPGA device, and requirement for hardware performance is lower than that of present architecture.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a physical layer architecture for a terahertz wireless network. Background technique [0002] The existing widely used WiFi network is based on the 802.11 protocol proposed by the Institute of Electrical and Electronics Engineers (IEEE), and mainly uses the 2.4GHz or 5GHz frequency band for communication. A simplified model of the protocol architecture is as figure 1 As shown, it is mainly divided into the physical (PHY) layer and the media access control (MAC) layer. The MAC layer is composed of the MAC protocol sublayer and the MAC management module, and the PHY layer is composed of the physical medium dependency (PMD) sublayer, the physical protocol convergence (PLCP) sublayer and the PHY management module (PLME). [0003] The main functions of the physical layer include three: [0004] 1) The transmission of frame data is completed through carrier an...

AI Technical Summary

Problems solved by technology

The modulation and demodulation, FFT / IFFT, shaping, reception synchronization, equalization and other processing related to the physical layer will be very difficult. Even if a highly parallel processing Field Programmable Logic Gate Array (FPGA) device is used, the required hardware scale is Very huge, unbearable in terms of size, power consumption, cost, etc.

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