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Diversity-multiplexing Gain Tradeoff: a Tool in Algebra?
Roope Vehkalahti, Hsiao-feng Lu
Since the invention of space-time coding numerous algebraic methods have been applied in code design. In particular algebraic number theory and central simple algebras have been on…
An algebraic look into MAC-DMT of lattice space-time codes
Roope Vehkalahti, Hsiao-feng Lu
In this paper we are concentrating on the diversity-multiplexing gain trade-off (DMT) of some space-time lattice codes. First we give a DMT bound for lattice codes having restricte…
Remarks on the Criteria of Constructing MIMO-MAC DMT Optimal Codes
Hsiao-feng, Lu, Jyrki Lahtonen +2
In this paper we investigate the criteria proposed by Coronel et al. for constructing MIMO MAC-DMT optimal codes over several classes of fading channels. We first give a counterexa…
On the Decay of the Determinants of Multiuser MIMO Lattice Codes
Jyrki Lahtonen, Roope Vehkalahti, Hsiao-feng Lu +2
In a recent work, Coronel et al. initiated the study of the relation between the diversity-multiplexing tradeoff (DMT) performance of a multiuser multiple-input multiple-output (MU…
Explicit Space-Time Codes Achieving The Diversity-Multiplexing Gain Tradeoff
Petros Elia, K. Raj Kumar, Sameer A. Pawar +2
A recent result of Zheng and Tse states that over a quasi-static channel, there exists a fundamental tradeoff, referred to as the diversity-multiplexing gain (D-MG) tradeoff, betwe…