Mixed-Carrier Communication for Technology Division Multiplexing
Mixed-Carrier Communication for Technology Division Multiplexing
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DOI：
10.3390/electronics10182248
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发表时间：
2021-09
期刊：
影响因子：
2.9
通讯作者：
A. F. Hussein;D. Saha;H. Elgala
中科院分区：
文献类型：
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作者：
A. F. Hussein;D. Saha;H. Elgala
最近，第六代（6G）网络的研究引起了人们的极大兴趣。 6G 预计将实现第五代 (5G) 网络无法可靠服务的广泛应用，例如触觉互联网。此外，与 5G 相比，6G 预计将提供每秒太比特 (Tbps) 的数据速率、低 10 倍的延迟以及接近 100% 的覆盖率。因此，6G 预计将扩展到所有可用频谱，包括太赫兹 (THz) 和光学频段。在本手稿中，混合载波通信 (MCC) 作为 6G 网络的新型物理层 (PHY) 设计进行了研究。本研究中提出的 MCC 版本基于可见光通信 (VLC)。 MCC 支持统一的传输 PHY 设计，以同时连接具有不同复杂性的设备。研究了 MCC 中嵌入的每个单独调制方案的设计权衡和所需的信噪比 (SNR)。复杂性分析表明，传统的光 OFDM 接收器可以捕获 MCC 中嵌入的高速比特流。对于 3.8×10−3 的前向纠错 (FEC) 误码率 (BER) 阈值，MCC 经过优化，通过在每个信标位置调制 (BPM) 符号 12 位的 MCC 包络内嵌入 2 信标相移键控 (2-BnPSK) 来最大化频谱效率。
Recently, research on sixth-generation (6G) networks has gained significant interest. 6G is expected to enable a wide-range of applications that fifth-generation (5G) networks will not be able to serve reliably, such as tactile Internet. Additionally, 6G is expected to offer Terabits per second (Tbps) data rates, 10 times lower latency, and near 100% coverage, compared to 5G. Thus, 6G is expected to expand across all available spectrums including terahertz (THz) and optical frequency bands. In this manuscript, mixed-carrier communication (MCC) is investigated as a novel physical layer (PHY) design for 6G networks. The proposed MCC version in this study is based on visible light communication (VLC). MCC enables a unified transmission PHY design to connect devices with different complexities, simultaneously. The design trade-offs and the required signal-to-noise ratio (SNR) per individual modulation schemes embedded within MCC are investigated. The complexity analysis shows that a conventional optical OFDM receiver can capture the high-speed bit-stream embedded within MCC. For a forward error correction (FEC) bit-error-rate (BER) threshold of 3.8×10−3, MCC is optimized to maximize the spectral efficiency by embedding 2-beacon phase-shift keying (2-BnPSK) within an MCC envelope on top of 12 bits per beacon position modulation (BPM) symbol.