D. Tujkovic
Stanford University
7 Papers
6 Citations
D. Tujkovic is an academic researcher from Stanford University. The author has contributed to research in topics: Telecommunications link & Subcarrier. The author has an hindex of 3, co-authored 7 publications.
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Papers
Subcarrier and power allocation for an OFDMA uplink based on tap correlation information
Eunchul Yoon,D. Tujkovic,Arogyaswami Paulraj +2 more
- 16 May 2005
TL;DR: If available subcarriers and power are allocated to multiusers based on their tap correlation information, a hefty portion of inherent multiuser diversity can be exploited in a cost effective manner leading to substantial improvement in spectral efficiency compared with uniform subcarrier and power allocation.
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Exploiting channel statistics to improve the average sum rate in OFDMA systems
Eunchul Yoon,D. Tujkovic,Arogyaswami Paulraj +2 more
- 05 Dec 2005
TL;DR: It is shown that simultaneous utilization of channel mean and tap correlation information in allocating subcarriers and power to multilasers offers potentially large spectral efficiency gains compared to both uniform subcarrier and power allocation and multiuser adaptation exploiting channel mean information only.
8
Statistical Opportunistic Scheduling With Tap Correlation Information for an OFDMA System in Uplink
TL;DR: This paper proposes two statistical opportunistic scheduling schemes that schedule users based on the average subcarrier gains and characterize the optimality of these schemes and compare their simulation results with those of other scheduling schemes with perfect or no channel state information.
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Code Rate-Diversity-Multiplexing Tradeoff
TL;DR: This work considers a generalized notion of the rate of the space-time code, which it refers to as the code rate Rc, and the associated diversity-code rate tradeoff and finds that a new diversity-multiplexing tradeoff exists as a function of the code rates.
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Multiuser adaptation exploiting channel statistics in an OFDMA uplink
TL;DR: The achievable average sum rate of an OFDMA uplink with multiuser adaptation based on the channel statistics information is investigated to offer large gains in spectral efficiency compared to both uniform subcarrier and power allocation and multiusers adaptation exploiting channel mean information only.
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