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High Rate Multiuser Cooperative Diversity Systems
| 题名： | High Rate Multiuser Cooperative Diversity Systems |
| 作者： | Kurti, Gjergji;Watson, Morgan;Wang, Genyuan;Amin, Moeness;Zhang, Yimin; |
| 关键词： | CODING, COMMUNICATIONS NETWORKS, MULTIPLE ACCESS, WIRELESS LINKS, COOPERATION, HIGH RATE, COLLABORATIVE TECHNIQUES, SURFACE EFFECT VEHICLES, UNMANNED, MODULATION, MULTISENSORS. |
| 摘要： | The fundamental objective of this research project is to develop novel cooperative wireless network schemes and practical coding designs that provide unmanned surface vehicle (USV) swarms reliable wireless links, with the overall data throughput and the communication quality significantly exceeding those of existing non-cooperative systems. Towards this end, we have made contributions in three areas: (1) We have developed a cooperation protocol that effectively constructs distributed space-time codes for cooperative diversity systems. Depending on application environments, the proposed protocol can be used to construct different distributed space-time codes. For example, high data rate distributed codes can be used to improve the communication efficiency when the channel state information (CSI) is available at the receivers, whereas differential distributed space-time codes can be used to avoid channel estimations in the absence of CSI; (2) We have developed full-rate, large diversity product space-time codes with non-vanishing minimum determinant. The proposed space-time codes are an important component in high-efficiency distributed space-time code construction; (3) We have studied the channel modeling and spatial correlation between different antennas in sea surface environments. The results are important in assessing the performance of cooperative diversity systems in sea surface environments as well as in designing array antenna configurations. |
| 总页数： | 112 |
| 报告类型： | 科技报告 |
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