eprintid: 1566748 rev_number: 24 eprint_status: archive userid: 608 dir: disk0/01/56/67/48 datestamp: 2017-10-13 11:21:23 lastmod: 2021-10-16 22:08:58 status_changed: 2017-10-13 11:21:23 type: thesis metadata_visibility: show creators_name: Okandeji, A title: Simultaneous wireless information and power transfer in full-duplex communication systems ispublished: unpub divisions: UCL divisions: B04 divisions: C05 divisions: F46 keywords: Full-duplex, simultaneous wireless information and power transfer (SWIPT), energy harvesting abstract: As wireless devices are mostly constrained by their inability to operate independently infinitely away from centralised power sources, radio frequency (RF) energy harvesting (EH) has been identified as a promising technique for future wireless devices. For this reason, this thesis introduces a novelty in RF EH full-duplex (FD) wireless communication systems. Specifically, this thesis investigate the potentials of simultaneous wireless information and power transfer (SWIPT) in FD communication systems. This thesis firstly focuses on optimal transmit strategies, rate maximization and power minimizing approach for SWIPT in FD systems. Using the rate-split method, difference of convex programming, semi-definite programming technique and one-dimensional search, we reformulate complex optimization problems to yield problem formulations that can be efficiently solved, thus we develop rate maximization algorithm for SWIPT in a point-to-point FD system, SWIPT in FD multiple-input multiple-output (MIMO) two-way relay system and power minimization approach for SWIPT in a multiuser MIMO FD system. This thesis also presents research work carried out with the aim of maximising the secrecy sum-rate for SWIPT in FD systems. In this context, we employ the use of an amplify and forward (AF) relay to inject artificial noise (AN) in order to confuse the eavesdropper. Thus, we address the optimal joint design of the beamforming matrix and AN covariance matrix at the relay, and the transmit power at the sources. Comprehensively, we present extensive theoretical and computer simulations to corroborate the need for joint optimization. date: 2017-07-28 date_type: published oa_status: green full_text_type: other thesis_class: doctoral_open language: eng thesis_view: UCL_Thesis primo: open primo_central: open_green verified: verified_manual elements_id: 1406374 lyricists_name: Okandeji, Alexander lyricists_name: Tong, Kin-Fai lyricists_id: OKAND48 lyricists_id: KFTON30 actors_name: Okandeji, Alexander actors_id: OKAND48 actors_role: owner full_text_status: public pages: 124 event_title: UCL (University College London) institution: UCL (University College London) department: Electronic and Electrical Engineering thesis_type: Doctoral editors_name: Wong, K editors_name: Tong, K citation: Okandeji, A; (2017) Simultaneous wireless information and power transfer in full-duplex communication systems. Doctoral thesis , UCL (University College London). Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/1566748/1/Alexander%20Okandeji_Thesis.pdf