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。 我们还将研究和开发多节点异构无线网络中的协作和自适应资源分配策略，其中涉及每个单独链路的信号处理，编码/调制，连接拓扑的级别的选择，以及链路之间的公共资源的调度，以及旨在减轻干扰的功率分配，同时保持所需的传输可靠性。 所提出的方法将涉及各个方面，包括系统建模和分析;开发高效的传输和资源分配技术;通过分析和模拟进行性能评估;实施所提出的方案。拟议的研究是重要的，应进行，以提高加拿大的竞争地位，提供先进的通信系统。我们的工业联系是这项研究在新的操作系统中最终应用的明确资产。

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. We will also study and develop collaborative and adaptive resource allocation strategies in multi-node heterogeneous wireless networks, which involve the selection of levels of signal processing, coding/modulation, connectivity topology for each individual link as well as the scheduling of common resources between the links, and power assignment aiming at mitigating interference while maintaining the required transmission reliability. The proposed approach and methodology will involve various aspects, including system modeling and analysis; development of efficient transmission and resource allocation techniques; performance evaluation by analysis and simulation; implementation of proposed schemes. The proposed research is significant and should be undertaken to enhance Canada's competitive position in providing advanced communications systems. Our industrial contacts are a definite asset for the eventual application of this research in new operational systems.