ID |
原文 |
译文 |
57588 |
在给定信息传输的块长度和天线数量条件下,WET 和 WIT 所用时隙数存在最优值. |
It is shown that there are optimum num?bers of channels uses for WET and WIT for given packet length of information transmission and the num?ber of antennas. |
57589 |
针对多用户无线供电通信网络系统中的交叉耦合干扰问题,提出了一种基于时间反演技术联合优化上、下行时间分配和功率分配方案,以最大化上行加权和速率. |
A jointly optimize time and power allocation in uplink and downlink scheme combined with time reversal technique is proposed to solve the cross-link interference problem in multi-user wireless powered communication networks and maximize the uplink weighted sum-rate. |
57590 |
利用时间反演特有的空时聚焦性抑制交叉耦合干扰;然后建立优化模型,将难以求解的加权和速率问题转化为最小均方误差问题; |
Using the unique time- space focusing of time reversal to suppress the cross-link interference firstly,an optimization model is then established,thus the non-convex weighted sum-rate problem transformed into weighted minimum mean square error problem is solved. |
57591 |
最后通过分级逐次优化变量,分别求出功率和时间的最优解. |
The optimal solution of power and time can be obtained separately by grad- ing optimize variables sequentially. |
57592 |
仿真结果表明,在引入时间反演技术抑制系统的交叉耦合干扰后,系统的平均加权和速率明显提升. |
Simulations show that the system average sum-rate significantly im- proved after introducing the time reversal technique to suppress the cross-link interference. |
57593 |
认知无线电可通过频谱感知提高资源利用率,但会产生感知能耗,降低传输能量. |
Cognitive radio can improve spectrum utilization through sensing spectrum,but it may generate circuit energy consumption,which decreases transmission energy. |
57594 |
为了保证认知无线电的传输性能,提出认知无线电可利用多载波实现无线携能通信,并分配通信资源,实现系统性能优化. |
In order to guarantee transmission per- formance,a multi-carrier is proposed to realize simultaneous wireless information and power transfer whose optimal performance can be achieved through communication resource allocations. |
57595 |
认知无线电利用部分子载波传输信息,采集剩余子载波上主用户射频能量,补充感知耗能. |
Cognitive radio uses some subcarriers to transmit information and collect the primary user radio frequency energy on the remaining subcarriers to supplement the perceived energy consumption. |
57596 |
提出的子载波和子载波功率联合优化算法,在保证能量、干扰和总功率受约束的基础上,可最优化系统的吞吐量和能量. |
A joint optimization algorithm of subcarrier set and subcarrier power is proposed,which can maximize system performance subject the con- straints of energy,interference and total power. Simulations show that energy harvesting may occupy trans- mission resources,a reasonable allocation of subcarriers is required to achieve a tradefoff between rate and energy. |
57597 |
仿真结果表明,能量采集会占用传输资源,需要合理分配子载波,使其在速率和能量间取得性能折中.提出的算法通过采集能量补充感知能耗有效地提高了系统吞吐量. |
The proposed algorithm effectively improves system throughput by collecting energy to supple- ment sensing energy consumption. |