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Joint Minimization of Uplink and Downlink Whole-Body Exposure Dose in Indoor Wireless Networks

机译:室内无线网络中上行链路和下行链路整个人体暴露剂量的联合最小化

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摘要

The total whole-body exposure dose in indoor wireless networks is minimized. For the first time, indoor wireless networks are designed and simulated for a minimal exposure dose, where both uplink and downlink are considered. The impact of the minimization is numerically assessed for four scenarios: two WiFi configurations with different throughputs, a Universal Mobile Telecommunications System (UMTS) configuration for phone call traffic, and a Long-Term Evolution (LTE) configuration with a high data rate. Also, the influence of the uplink usage on the total absorbed dose is characterized. Downlink dose reductions of at least 75% are observed when adding more base stations with a lower transmit power. Total dose reductions decrease with increasing uplink usage for WiFi due to the lack of uplink power control but are maintained for LTE and UMTS. Uplink doses become dominant over downlink doses for usages of only a few seconds for WiFi. For UMTS and LTE, an almost continuous uplink usage is required to have a significant effect on the total dose, thanks to the power control mechanism.
机译:室内无线网络中的全身暴露总剂量降至最低。第一次,室内无线网络被设计和模拟为最小暴露剂量,同时考虑了上行链路和下行链路。在四种情况下以数字方式评估了最小化的影响:两种具有不同吞吐量的WiFi配置,用于电话呼叫流量的通用移动电信系统(UMTS)配置以及具有高数据速率的长期演进(LTE)配置。而且,表征了上行链路使用对总吸收剂量的影响。当添加更多具有较低发射功率的基站时,可以观察到至少75%的下行链路剂量减少。由于缺乏上行链路功率控制,总剂量减少量随WiFi上行链路使用量的增加而减少,但对于LTE和UMTS却保持不变。对于WiFi,仅几秒钟的使用时间,上行链路剂量就比下行链路剂量占主导地位。对于UMTS和LTE,由于功率控制机制的原因,要求几乎连续的上行链路使用对总剂量产生重大影响。

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