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oai:www.ideals.illinois.edu:2142/95515 2023-07-11 col_2142_5131 col_2142_8888 com_2142_5130 com_2142_8887 com_2142_234

text text Made available in DSpace on 2017-03-01T16:37:08Z (GMT). No. of bitstreams: 2 LEE-THESIS-2016.pdf: 886931 bytes, checksum: 861a01b978b7a8909d863c93388cc960 (MD5) LICENSE.txt: 4208 bytes, checksum: 751f13872c59aa3d2ae5fe4a3cade338 (MD5) Previous issue date: 2016-12-07 Embargo set by: Seth Robbins for item 98631 Lift date: 2019-03-01T16:37:19Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system U of I Only Restriction Lifted for Item 98631 on 2019-03-02T10:15:24Z. application/pdf http://hdl.handle.net/2142/95515 en Copyright 2016 Ulysses Lee Cooperative Diversity Backpressure Routing Network Queueing theory Backpressure networks with cooperative link augmentation Singer, Andrew Carl Lee, Ulysses 2017-03-01T16:37:08Z 2017-03-01T16:37:08Z 2019-03-02T10:15:24Z 2016-12-07 2016-12 We investigate a cross-layer communication technique which jointly lever- ages diversity gain from cooperative communications relaying and optimal throughput characteristics of backpressure networking. In particular, we address the capacity limitations of backpressure networks within fading en- vironments by the retasking of a cooperating node as a relay with potentially heterogeneous transmission architecture. Retasking a node as a cooperative relay can temporally allocate resources of one particular session within the backpressure network onto another session, thereby allowing for a more flex- ible physical (PHY) layer for traffic load balancing. With this, we derive a scheduling method that ensures timely delivery of information in networks without predetermined infrastructure. Within this thesis, we propose the architecture of an amplify-and-forward relay for cooperative communications and derive the performance of multi- ple cooperative nodes utilizing this architecture. We also propose a suitable medium access control (MAC) layer facilitating the scheduling and decision making of nearby relay node candidates. The proposed architecture may be of potential interest for emerging device-to-device (D2D) and swarming mesh networks. Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2018-12-01 The student, Ulysses Lee, accepted the attached license on 2016-12-06 at 15:48. The student, Ulysses Lee, submitted this Thesis for approval on 2016-12-06 at 15:58. This Thesis was approved for publication on 2016-12-07 at 09:42. DSpace SAF Submission Ingestion Package generated from Vireo submission #10457 on 2017-02-28 at 14:37:21 Electrical And Computer Engineering Electrical And Computer Engineering University of Illinois at Urbana-Champaign Thesis M.S.