Data transmission that is reliable and relies on low-complexity transceiver techniques is of practical importance for ultrasonic intra-body communications (IBCs). Considering the trade-off between reliability and computational complexity, this paper proposes an ultrasonic dynamic power splitting (UDPS) scheme. UDPS consists of statistic power splitting (SPS) and time switching (TS), where SPS splits the received signal to coherent detection (CD) and energy detection (ED) with an adjustable power splitting ratio, and TS switches between CD and ED with an adjustable power coefficient. Therefore, the proposed UDPS can exploit the reliability of CD and meanwhile benefit from the low complexity of ED. We also derive the theoretical bit-error rate (BER) of UDPS. Both theoretical and simulated results demonstrate that due to the linear noise in CD and non-linear noise in ED, the optimal power splitting ratio of SPS is 1 and the optimal power coefficient of TS is within (0, 1). More importantly, UDPS can achieve much lower complexity than CD at the cost of a slight BER loss for IBCs.
可靠且依赖低复杂度收发器技术的数据传输对超声波体内通信(IBC)具有重要的实际意义。考虑到可靠性和计算复杂性之间的权衡,本文提出了一种超声波动态功率分配(UDPS)方案。UDPS 包括统计功率分割(SPS)和时间切换(TS),其中 SPS 以可调节的功率分割比将接收到的信号分割为相干检测(CD)和能量检测(ED),TS 以可调节的功率系数在 CD 和 ED 之间切换。因此,拟议的 UDPS 可以利用 CD 的可靠性,同时受益于 ED 的低复杂性。我们还得出了 UDPS 的理论误码率 (BER)。理论和仿真结果表明,由于 CD 中的线性噪声和 ED 中的非线性噪声,SPS 的最佳功率分配比为 1,TS 的最佳功率系数在(0,1)范围内。更重要的是,UDPS 可以实现比 CD 更低的复杂度,但代价是 IBC 的误码率会略有下降。
{"title":"An Ultrasonic Power Splitting Receiver With Improved Complexity-Reliability Trade-Off for Intra-Body Communications","authors":"Yuankun Tang;Qianqian Wang;Miaowen Wen;Quansheng Guan;Fei Ji;Julian Cheng","doi":"10.1109/TMBMC.2023.3315517","DOIUrl":"10.1109/TMBMC.2023.3315517","url":null,"abstract":"Data transmission that is reliable and relies on low-complexity transceiver techniques is of practical importance for ultrasonic intra-body communications (IBCs). Considering the trade-off between reliability and computational complexity, this paper proposes an ultrasonic dynamic power splitting (UDPS) scheme. UDPS consists of statistic power splitting (SPS) and time switching (TS), where SPS splits the received signal to coherent detection (CD) and energy detection (ED) with an adjustable power splitting ratio, and TS switches between CD and ED with an adjustable power coefficient. Therefore, the proposed UDPS can exploit the reliability of CD and meanwhile benefit from the low complexity of ED. We also derive the theoretical bit-error rate (BER) of UDPS. Both theoretical and simulated results demonstrate that due to the linear noise in CD and non-linear noise in ED, the optimal power splitting ratio of SPS is 1 and the optimal power coefficient of TS is within (0, 1). More importantly, UDPS can achieve much lower complexity than CD at the cost of a slight BER loss for IBCs.","PeriodicalId":36530,"journal":{"name":"IEEE Transactions on Molecular, Biological, and Multi-Scale Communications","volume":"9 4","pages":"483-488"},"PeriodicalIF":2.2,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135441898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In molecular communication (MC), information is conveyed between nano-scale transmitters and receivers using molecules. The environment sensing is a significant component of any MC system. The design of biological sensors thus is an important aspect for implementing MC systems. This paper presents a novel $textit {Si}_{{3}}{N}_{{4}}$