Fluid Antenna System: New Insights on Outage Probability and Diversity Gain
Fluid Antenna System: New Insights on Outage Probability and Diversity Gain
复制标题
流体天线系统:关于中断概率和分集增益的新见解
DOI:
10.1109/twc.2023.3276245
复制
发表时间:
2024
影响因子:
10.4
通讯作者:
New W
中科院分区:
文献类型:
--
作者:
New W
To enable innovative applications and services, both industry and academia are exploring new technologies for sixth generation (6G) communications. One of the promising candidates is fluid antenna system (FAS). Unlike existing systems, FAS is a novel communication technology where its antenna can freely change its position and shape within a given space. Compared to the traditional systems, this unique capability has the potential of providing higher diversity and interference-free communications. Nevertheless, the performance limits of FAS remain unclear as its system properties are difficult to analyze. To address this, we approximate the outage probability and diversity gain of FAS in closed-form expressions. We then propose a suboptimal FAS withports, where a significant gain can be obtained over FAS withports whilst FAS withports only yields marginal improvement over the proposed suboptimal FAS. In this paper, we also provide analytical and simulation results to unfold the key factors that affect the performance of FAS. Limited to systems with one active radio frequency (RF)-chain, we show that the proposed suboptimal FAS outperforms single-antenna (SISO) system and selection combining (SC) system in terms of outage probability. Interestingly, when the given space is, the outage probability of the proposed suboptimal FAS with one active RF-chain achieves near to that of the maximal ratio combining (MRC) system with multiple active RF-chains.
登录
查看更多内容
DOI:
10.1109/lcomm.2022.3222574
发表时间:
2023
期刊:
IEEE Communications Letters
影响因子:
--
作者:
Wong K
通讯作者:
Wong K
影响因子:
2.1
作者:
Martin Wiegand;S. Nadarajah
通讯作者:
S. Nadarajah
影响因子:
4.4
作者:
Martin Wiegand;S. Nadarajah
通讯作者:
S. Nadarajah
影响因子:
10.4
作者:
Kai‐Kit Wong;K. Tong
通讯作者:
Kai‐Kit Wong;K. Tong
影响因子:
1.9
作者:
Mustafa Tekinay;C. Beard
通讯作者:
C. Beard