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| 1 | Signal processing challenges for applying software radio principles in future wireless terminal: an overview 显示文摘 | Mikko Valkama Juho Pirskanen | 2002 | International Journal of Communication Systems2002，15，8： | 1 |
| 2 | A novel image rejection architecture for quadrature radio receivers显示文摘 | Mikko Valkama Markku REnfors | 2004 | IEEE Transactions on Circuit and Systems-Ⅱ: express briefs2004，51，2： | 1 |
| 3 | Advanced DSP for I/Q imbalance compensation in a low-IF receiver 显示文摘 | Valkama Mikko Renfors Markku | 2000 | IEEE international conference on communications2000，2，3： | 1 |
| 4 | Frequen-cy-selective I/Q mismatch calibration of wideband direct-conversion transmitters 显示文摘 | Lauri Anttila Mikko Valkama Markku Renfors | 2008 | Circuits and Systems II: Ex-press Briefs IEEE Transactions on2008，55，4： | 1 |
| 5 | Optimal power allocation for homogeneous and heterogeneous CA-MIMO systems显示文摘Carrier aggregation (CA) technique has been adopted by 3GPP LTE-Advanced due to its ability of enhancing the spectrum efficiency and peak data rates through aggregating multiple component carriers (CCs). Two main factors make power control optimization very essential for CA-MIMO radio link: the different channel characteristics in multiple CCs, and multiple power constraint conditions (per-CC, per-antenna and pertransmitter power constraints) in the actual CA system deployment. This paper firstly derives the degenerate conditions of optimal power allocation for a single-transmitter CA-MIMO system. Stemming from the derived degenerate conditions, we propose a modified hybrid gradient optimal power allocation(MHGOPA) algorithm to maximize the system performance. Simulation results verify the validity of the proposed resource allocation approach by comparing with baseline average power allocation algorithm. Finally, we extend the MHGOPA algorithm into a heterogeneous CA network with multiple transmitters working simultaneously. | CUI QiMei KANG PeiChuan HUANG XueQing VALKAMA Mikko NIEMELA Jarno | 2013 | Science China(Information Sciences)2013，56，2： | 1 |
| 6 | Circulari-ty-Based I/Q Imbalance Compensation in Wideband Di-rect-Conversion Receivers 显示文摘 | Lauri Anttila Mikko Valkama Markku Renfors | 2008 | Vehicular Technology IEEE Transactions on2008，57，4： | 1 |
| 7 | Stochastic geometry based analysis for heterogeneous networks: a perspective on meta distribution显示文摘The meta distribution as a new performance metric can provide much more fine-grained information about the individual link reliability, and is of great value for the analysis and design of the future cellular networks. In this paper, we investigate the stochastic geometry based analysis for heterogeneous networks from the perspective on the meta distribution. The comprehensive overview for the fundamental framework of the meta distribution is provided, which involves the concepts of the meta distribution and its related performance metric(e.g., mean local delay and spatial outage capacity) and the efficient calculation methods of the meta distribution. The insights of the meta distribution are also stated by the comparison with standard success probability. The various applications of the meta distribution to heterogeneous networks are summarized and categorized by different types of technologies. Furthermore, some open issues and future work are discussed to promote the development and application of the meta distribution. | Xinlei YU Qimei CUI Yuanjie WANG Na LI Xiaofeng TAO Mikko VALKAMA | 2020 | Science China(Information Sciences)2020，63，12： | 1 |
| 8 | Optimal energy-efficient scheme for two-way relay channel using physical layer network coding显示文摘Systems are always designed and optimized based on full traffic load in the current literatures.However,practical systems are seldom operating at full load,even at peak traffic hours.Instead of maximizing system rate to achieve the full load,an optimal energy-efficient scheme to minimize the transmit power with required rates is investigated in this article.The considered scenario is a two-way relay channel using amplify-and-forward protocol of physical layer network coding,where two end nodes exchange messages via multiple relay nodes within two timeslots.A joint power allocation and relay selection scheme is designed to achieve the minimum transmit power.Through convex optimization theory,we firstly prove that single relay selection scheme is the most energy-efficient way for physical layer network coding.The closed-form expressions of power allocation are also given.Numerical simulations demonstrate the performance of the designed scheme as well as the comparison among different schemes. | ZHOU Min CUI Qi-mei WANG Hui TAO Xiao-feng TIAN Hui MIKKO Valkama | 2011 | The Journal of China Universities of Posts and Telecommunications2011，18，6： | 0 |
| 9 | Advances in Digital Front-End and Software RF Processing:Part I显示文摘在无线宽带,雷达,声纳,和广播系统的最大的技术趋势之一是软件收音机频率处理和数字前端。这个趋势包含大量话题,从到系统集成的电路设计和信号处理。它包括数字起来变换 DUC 和下面变换 DDC,数字预失真 DPD, | Mikko Valkama Serioja Ovidiu TatuTomohisa Wada | 2011 | ZTE Communications2011，9，3： | 0 |
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