Roope Vehkalahti

79 papers B 26C 2Journal 45Unranked 6

Year	Rank	Type	Title / Venue / Authors
2025	J	`jnl`	Deterministic Patterns for Multiple Access With Latency and Reliability Guarantees. IEEE Trans. Commun. Radoslaw Kotaba, Roope Vehkalahti, Cedomir Stefanovic, Olav Tirkkonen, Petar Popovski
2023	J	`jnl`	Modular CSI Quantization for FDD Massive MIMO Communication. CoRR Jialing Liao, Roope Vehkalahti, Tefjol Pllaha, Wei Han, Olav Tirkkonen
2023	J	`jnl`	Modular CSI Quantization for FDD Massive MIMO Communication. IEEE Trans. Wirel. Commun. Jialing Liao, Roope Vehkalahti, Tefjol Pllaha, Wei Han, Olav Tirkkonen
2022	J	`jnl`	Deterministic Patterns for Multiple Access in Latency-Constrained Ultra-Reliable Communications. CoRR Radoslaw Kotaba, Roope Vehkalahti, Cedomir Stefanovic, Olav Tirkkonen, Petar Popovski
2022	J	`jnl`	Non-commutative Ring Learning with Errors from Cyclic Algebras. J. Cryptol. Charles Grover, Andrew Mendelsohn, Cong Ling, Roope Vehkalahti
2022	B	`conf`	Secret Keys from Parity Bits in the Satellite Setting. ISIT Jari Lietzén, Olav Tirkkonen, Roope Vehkalahti
2022	J	`jnl`	The DMT of Real and Quaternionic Lattice Codes and DMT Classification of Division Algebra Codes. IEEE Trans. Inf. Theory Roope Vehkalahti, Laura Luzzi
2021	—	`conf`	CSI Quantization for FDD Massive MIMO Communication. VTC Spring Roope Vehkalahti, Jialing Liao, Tefjol Pllaha, Wei Han, Olav Tirkkonen
2021	B	`conf`	Signature Code Design for Fast Fading Channels. ISIT Roope Vehkalahti, Tefjol Pllaha, Olav Tirkkonen
2021	J	`jnl`	The DMT of Real and Quaternionic Lattice Codes and DMT Classification of Division Algebra Codes. CoRR Roope Vehkalahti, Laura Luzzi
2021	—	`conf`	Towards Ultra-Reliable Signature Coding With Multiple Transmit Antennas. VTC Spring Roope Vehkalahti, Tefjol Pllaha, Olav Tirkkonen
2020	B	`conf`	A Two-way QKD Protocol Outperforming One-way Protocols at Low QBER. ISIT Jari Lietzén, Roope Vehkalahti, Olav Tirkkonen
2020	J	`jnl`	Non-Commutative Ring Learning With Errors From Cyclic Algebras. CoRR Charles Grover, Cong Ling, Roope Vehkalahti
2019	J	`jnl`	Almost universal codes for MIMO wiretap channels. IACR Cryptol. ePrint Arch. Laura Luzzi, Roope Vehkalahti, Cong Ling
2019	B	`conf`	Code Design Principles for Ultra-Reliable Random Access with Preassigned Patterns. ISIT Christopher Boyd, Roope Vehkalahti, Olav Tirkkonen, Antti Laaksonen
2019	J	`jnl`	Code Design Principles for Ultra-Reliable Random Access with Preassigned Patterns. CoRR Christopher Boyd, Roope Vehkalahti, Olav Tirkkonen, Antti Laaksonen
2018	J	`jnl`	Almost Universal Codes for MIMO Wiretap Channels. IEEE Trans. Inf. Theory Laura Luzzi, Roope Vehkalahti, Cong Ling
2018	—	`conf`	Grant-Free Access in URLLC with Combinatorial Codes and Interference Cancellation. GLOBECOM Workshops Christopher Boyd, Roope Vehkalahti, Olav Tirkkonen
2018	J	`jnl`	Interference Cancelling Codes for Ultra-Reliable Random Access. Int. J. Wirel. Inf. Networks Christopher Boyd, Roope Vehkalahti, Olav Tirkkonen
2018	B	`conf`	The DMT Classification of Real and Quaternionic Lattice Codes. ISIT Laura Luzzi, Roope Vehkalahti
2018	J	`jnl`	The DMT classification of real and quaternionic lattice codes. CoRR Laura Luzzi, Roope Vehkalahti
2017	J	`jnl`	Algebraic lattice codes for linear fading channels. CoRR Laura Luzzi, Roope Vehkalahti
2017	J	`jnl`	Almost Universal Codes Achieving Ergodic MIMO Capacity Within a Constant Gap. IEEE Trans. Inf. Theory Laura Luzzi, Roope Vehkalahti
2017	B	`conf`	Combinatorial code designs for ultra-reliable IoT random access. PIMRC Christopher Boyd, Roope Vehkalahti, Olav Tirkkonen
2017	B	`conf`	Grassmannian codes from multiple families of mutually unbiased bases. ISIT Olav Tirkkonen, Christopher Boyd, Roope Vehkalahti
2016	J	`jnl`	Almost universal codes for MIMO wiretap channels. CoRR Laura Luzzi, Roope Vehkalahti, Cong Ling
2016	B	`conf`	Almost universal codes for fading wiretap channels. ISIT Laura Luzzi, Cong Ling, Roope Vehkalahti
2016	J	`jnl`	Almost universal codes for fading wiretap channels. CoRR Laura Luzzi, Cong Ling, Roope Vehkalahti
2016	B	`conf`	Towards a complete DMT classification of division algebra codes. ISIT Laura Luzzi, Roope Vehkalahti, Alexander Gorodnik
2015	J	`jnl`	A Noncommutative Analogue of the Odlyzko Bounds and Bounds on Performance for Space-Time Lattice Codes. IEEE Trans. Inf. Theory Benjamin Linowitz, Matthew Satriano, Roope Vehkalahti
2015	J	`jnl`	Almost universal codes achieving ergodic MIMO capacity within a constant gap. CoRR Laura Luzzi, Roope Vehkalahti
2015	J	`jnl`	An Error Event Sensitive Tradeoff Between Rate and Coding Gain in MIMO MAC. IEEE Trans. Inf. Theory Toni Ernvall, Jyrki T. Lahtonen, Hsiao-feng Francis Lu, Roope Vehkalahti
2015	B	`conf`	Division algebra codes achieve MIMO block fading channel capacity within a constant gap. ISIT Laura Luzzi, Roope Vehkalahti
2015	J	`jnl`	Estimates for the growth of inverse determinant sums of quasi-orthogonal and number field lattices. CoRR Roope Vehkalahti, Laura Luzzi
2015	B	`conf`	Number field lattices achieve Gaussian and Rayleigh channel capacity within a constant gap. ISIT Roope Vehkalahti, Laura Luzzi
2015	J	`jnl`	Towards a complete DMT classification of division algebra codes. CoRR Laura Luzzi, Roope Vehkalahti, Alexander Gorodnik
2014	J	`jnl`	A non-commutative analogue of the Odlyzko bounds and bounds on performance for space-time lattice codes. CoRR Benjamin Linowitz, Matthew Satriano, Roope Vehkalahti
2014	B	`conf`	Constructions a of lattices from number fields and division algebras. ISIT Roope Vehkalahti, Wittawat Kositwattanarerk, Frédérique E. Oggier
2014	J	`jnl`	Division algebra codes achieve MIMO block fading channel capacity within a constant gap. CoRR Laura Luzzi, Roope Vehkalahti
2014	J	`jnl`	Number field lattices achieve Gaussian and Rayleigh channel capacity within a constant gap. CoRR Roope Vehkalahti, Laura Luzzi
2014	B	`conf`	Shifted inverse determinant sums and new bounds for the DMT of space-time lattice codes. ISIT Roope Vehkalahti, Laura Luzzi, Jean-Claude Belfiore
2014	J	`jnl`	Shifted inverse determinant sums and new bounds for the DMT of space-time lattice codes. CoRR Roope Vehkalahti, Laura Luzzi, Jean-Claude Belfiore
2013	B	`conf`	A new design criterion for spherically-shaped division algebra-based space-time codes. ITW Laura Luzzi, Roope Vehkalahti
2013	J	`jnl`	A new design criterion for spherically-shaped division algebra-based space-time codes. CoRR Laura Luzzi, Roope Vehkalahti
2013	J	`jnl`	An error event sensitive trade-off between rate and coding gain in MIMO MAC. CoRR Toni Ernvall, Jyrki T. Lahtonen, Hsiao-feng Lu, Roope Vehkalahti
2013	J	`jnl`	Inverse Determinant Sums and Connections Between Fading Channel Information Theory and Algebra. IEEE Trans. Inf. Theory Roope Vehkalahti, Hsiao-feng Francis Lu, Laura Luzzi
2013	J	`jnl`	Remarks on criteria for achieving the optimal diversity-multiplexing gain trade-off. CoRR Roope Vehkalahti
2012	B	`conf`	Connecting DMT of division algebra space-time codes and point counting in Lie groups. ISIT Roope Vehkalahti, Laura Luzzi
2012	J	`jnl`	Construction of MIMO MAC Codes Achieving the Pigeon Hole Bound CoRR Toni Ernvall, Roope Vehkalahti
2012	B	`conf`	Construction of MIMO MAC codes achieving the pigeon hole bound. ISIT Toni Ernvall, Roope Vehkalahti
2012	J	`jnl`	Fast-Decodable Asymmetric Space-Time Codes From Division Algebras. IEEE Trans. Inf. Theory Roope Vehkalahti, Camilla Hollanti, Frédérique E. Oggier
2011	B	`conf`	A general framework for constructing fast-decodable asymmetric space-time codes. ISIT Roope Vehkalahti, Camilla Hollanti
2011	J	`jnl`	Algebraic Hybrid Satellite-Terrestrial Space-Time Codes for Digital Broadcasting in SFN CoRR Camilla Hollanti, Roope Vehkalahti, Youssef Nasser
2011	—	`conf`	Algebraic hybrid satellite-terrestrial space-time codes for digital broadcasting in SFN. SiPS Camilla Hollanti, Roope Vehkalahti, Youssef Nasser
2011	J	`jnl`	An algebraic look into MAC-DMT of lattice space-time codes CoRR Roope Vehkalahti, Hsiao-feng Lu
2011	B	`conf`	An algebraic look into MAC-DMT of lattice space-time codes. ISIT Roope Vehkalahti, Hsiao-feng Lu
2011	J	`jnl`	DMT Optimal Codes Constructions for Multiple-Access MIMO Channel. IEEE Trans. Inf. Theory Hsiao-feng Lu, Camilla Hollanti, Roope Vehkalahti, Jyrki T. Lahtonen
2011	J	`jnl`	Diversity-multiplexing Gain Tradeoff: a Tool in Algebra? CoRR Roope Vehkalahti, Hsiao-feng Lu
2011	B	`conf`	Diversity-multiplexing gain tradeoff: A tool in algebra? ITW Roope Vehkalahti, Hsiao-feng Francis Lu
2011	J	`jnl`	Inverse Determinant Sums and Connections Between Fading Channel Information Theory and Algebra CoRR Roope Vehkalahti, Hsiao-feng Lu
2011	B	`conf`	Reducing complexity with less than minimum delay space-time lattice codes. ITW Roope Vehkalahti, Camilla Hollanti
2010	C	`conf`	A family of cyclic division algebra based fast-decodable 4×2 space-time block codes. ISITA Roope Vehkalahti, Camilla Hollanti, Jyrki T. Lahtonen
2010	J	`jnl`	Fast-Decodable Asymmetric Space-Time Codes from Division Algebras CoRR Roope Vehkalahti, Camilla Hollanti, Frédérique E. Oggier
2010	B	`conf`	Fast-decodable MIDO codes from crossed product algebras. ISIT Frédérique E. Oggier, Roope Vehkalahti, Camilla Hollanti
2010	C	`conf`	Some simple observations on MISO codes. ISITA Roope Vehkalahti, Camilla Hollanti, Jyrki T. Lahtonen, Hsiao-feng Lu
2010	J	`jnl`	The coding gain of real matrix lattices: bounds and existence results. IEEE Trans. Inf. Theory Roope Vehkalahti
2009	B	`conf`	An algebraic tool for obtaining conditional non-vanishing determinants. ISIT Camilla Hollanti, Roope Vehkalahti, Hsiao-feng Lu
2009	J	`jnl`	New Space-Time Code Constructions for Two-User Multiple Access Channels. IEEE J. Sel. Top. Signal Process. Hsiao-feng Lu, Roope Vehkalahti, Camilla Hollanti, Jyrki T. Lahtonen, Yi Hong, Emanuele Viterbo
2009	J	`jnl`	On the Decay of the Determinants of Multiuser MIMO Lattice Codes CoRR Jyrki T. Lahtonen, Roope Vehkalahti, Hsiao-feng Lu, Camilla Hollanti, Emanuele Viterbo
2009	J	`jnl`	On the densest MIMO lattices from cyclic division algebras. IEEE Trans. Inf. Theory Roope Vehkalahti, Camilla Hollanti, Jyrki T. Lahtonen, Kalle Ranto
2009	J	`jnl`	Remarks on the Criteria of Constructing MIMO-MAC DMT Optimal Codes CoRR Hsiao-feng Lu, Jyrki T. Lahtonen, Roope Vehkalahti, Camilla Hollanti
2009	B	`conf`	Some properties of Alamouti-like MISO codes. ISIT Roope Vehkalahti
2008	B	`conf`	On the algebraic structure of the Silver code: A 2 × 2 perfect space-time block code. ITW Camilla Hollanti, Jyrki T. Lahtonen, Kalle Ranto, Roope Vehkalahti, Emanuele Viterbo
2007	J	`jnl`	3-Designs from all Z Finite Fields Their Appl. Jyrki T. Lahtonen, Kalle Ranto, Roope Vehkalahti
2007	B	`conf`	Constructing Optimal Division Algebras for Space-Time Coding. ITW Roope Vehkalahti
2007	—	`conf`	Dense MIMO Matrix Lattices - A Meeting Point for Class Field Theory and Invariant Theory. AAECC Jyrki T. Lahtonen, Roope Vehkalahti
2007	J	`jnl`	On the densest MIMO lattices from cyclic division algebras CoRR Camilla Hollanti, Jyrki T. Lahtonen, Kalle Ranto, Roope Vehkalahti
2006	B	`conf`	Optimal Matrix Lattices for MIMO Codes from Division Algebras. ISIT Camilla Hollanti, Jyrki T. Lahtonen, Kalle Ranto, Roope Vehkalahti
2005	—	`conf`	3-Designs from Z WCC Jyrki T. Lahtonen, Kalle Ranto, Roope Vehkalahti