Journal
IEEE NETWORK
Volume 36, Issue 2, Pages 181-189Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/MNET.121.2100324
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Next-generation wireless services aim to optimize communication, computing, caching, and control in the 6G cellular network to meet the demands of sophisticated services. The concept of a seamless space-air-ground integrated network (SAGIN) is also introduced to bring new opportunities for mission-critical services.
Next-generation wireless services will change our daily lives by supporting smart factories, intelligent transportation, augmented/virtual reality, and more. These sophisticated services are usually both data- and computation-intensive, and must meet stringent latency and reliability requirements that cannot be readily satisfied by cloud-based service processing. Therefore, the 6G cellular network is expected to jointly optimize communication, computing, caching, and control. A further aspiration of 6G is to conceive a seamless space-air-ground integrated network (SAGIN) for filling the vast coverage holes across the globe, bringing new opportunities for mission-critical services. In this article, we aim for conceiving ultrareliable and low-latency edge intelligence for supporting mission-critical services by harnessing the diversified communication, computing, and caching resources at the network edge of SAGIN. We critically appraise a number of key enabling techniques, including a number of new service-centric resource allocation techniques. Finally, a range of open challenges is discussed.
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