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THE ROLE OF TRANSFER IN ADJUSTMENT: EXAMINING THE SOCIALIZATION PROCESS FOLLOWING NEWCOMER ORIENTATION
Title
THE ROLE OF TRANSFER IN ADJUSTMENT: EXAMINING THE SOCIALIZATION PROCESS FOLLOWING NEWCOMER ORIENTATION
Creator
Meredith, Rachel J.
Date
2018, 2018-05
Description
The purpose of the study was to extend organizational socialization research by exploring the impact of an orientation over time. Orientations...
Show moreThe purpose of the study was to extend organizational socialization research by exploring the impact of an orientation over time. Orientations and their impact have rarely been studied despite their popularity in practice. When viewed through the lens of the training literature, it was hypothesized that strategic orientations have a positive impact on newcomers by increasing transfer and its predictors (i.e., affective and cognitive learning outcomes). Two-hundred and nine newcomers with prior work experience participated by attending an organization-level orientation on their first two days with a new employer. Post-training learning outcomes were gathered immediately after orientation followed by eight weekly assessments of orientation transfer and newcomer adjustment (i.e., role clarity, social integration, values mastery). Using latent growth curve modeling, intraindividual differences in interindividual change in transfer and adjustment were examined and all trajectories were found to significantly vary within the sample. Findings suggest that transfer declines and then levels off around week four and the slower the decline, the greater the rate of adjustment. As predicted, initial levels of orientation transfer mediated the relationship between learning outcomes and rates of adjustment. Future research should continue to explore the role of transfer in newcomer adjustment, particularly to seek predictors of transfer trajectories which were not found in the present study.
Ph.D. in Psychology, May 2018
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NON-ORTHOGONAL MULTIPLE ACCESS SYSTEM BASED ON COMBINATORIAL DESIGN
Title
NON-ORTHOGONAL MULTIPLE ACCESS SYSTEM BASED ON COMBINATORIAL DESIGN
Creator
Wu, Yuteng Wu
Date
2018, 2018-05
Description
In this thesis, a new class of multiuser Non-Orthogonal Multiple Access (NOMA) is studied. Overall, the main contributions are listed as...
Show moreIn this thesis, a new class of multiuser Non-Orthogonal Multiple Access (NOMA) is studied. Overall, the main contributions are listed as follows: Firstly, we study a new class of the space-time code (STC) based on a circulant matrix. A diagonal transmission matrix is adopted by utilizing the singular value decomposition (SVD) on the circulant matrix. After that, we present a Multiuser Multidimensional STC. This code expand the previous diagonal transmission matrix to multiple dimensions. Hence it produces a diversity due to the linear combination of all input elements. Two modified constellations are presented aiming at reducing the constellation expansion and the implementation burden. Secondly, a brief survey on state-of-the-art NOMA systems is provided, where their performance in terms of bit error rate (BER), overload capability and spectrum efficiency are compared. Thirdly, we study a NOMA system systematically. Firstly, an uplink NOMA system based on the Steiner Triple System (STS) is presented. A multiuser detection algorithm by using a reduced size vector correlator which will decrease the receiver complexity with an acceptable performance is proposed. Performance-oriented algorithm and overload-oriented algorithm aiming at handling different channel scenarios are studied. After that, we present a novel constellation forming methodology of downlink NOMA system aiming at solving the surjective-only mapping problem in NOMA systems. Compared with other methods by using constellation shaping, phase shifting and power scaling [1-4], our paradigm is capable of providing a new way to solve the surjective-only mapping with low design complexity. As far as we know, this method has not been used before. Finally, the impact of channel estimation error for NOMA system is simulated. The idea behind channel estimation is transmitting the pilot sequence and estimating the channel coefficient based on the received pilot sequence. As a future work, we will work on ARQ, cryptography and optimal designs.
Ph.D. in Electrical Engineering, May 2018
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