Cooperative multi-dimensional transmission and resource allocation techniques for broadband access systems

我们提出了一个研究计划，通过认知合作的概念，适用于异构无线接入网络的高效传输和资源分配技术的分析和开发领域。我们将研究和开发合作传输策略，使用自适应编码/调制方案，利用多样性在多个维度，例如，频率、空间、时间、信号、编码、多用户，以增加时变、频率选择性衰落信道中的系统容量。我们计划解决几个开放的问题，具有巨大的潜力，用于在多节点网络，包括带宽和功率效率的中继和中继选择策略，引入多个中继之间的压缩多样性和/或认知合作的组合。此外，多天线技术在节点之间的智能和有效的使用可以带来的好处，通过网络编码的协作分集方案的分布式方式的协作优势。

We propose a research plan in the areas of analysis and development of efficient transmission and resource allocation techniques applicable to heterogeneous wireless access networks through the notion of cognitive cooperation. We will study and develop cooperative transmission strategies using adaptive coding/modulation schemes that exploit diversity available in multiple dimensions, e.g., frequency, space, time, signal, code, multi-user, to increase system capacity in time-varying, frequency-selective fading channels. We plan to address several open questions with vast potential for use in a multi-node network, including bandwidth and power-efficient relaying and relay selection strategies, introduction of compression diversity among multiple relays and/or combination of cooperation with cognition. Furthermore, intelligent and efficient use of multiple-antenna techniques among nodes can bring benefits from the collaborative advantages in a distributed manner via network-coded cooperative diversity schemes.