Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Karlo G. Lenzi"'
Publikováno v:
International Journal of Parallel Programming. 43:988-1003
In our previous work, we presented a brief analysis of the performance of the code block segmentation procedure adopted by the 3GPP LTE Advanced (LTE-A) Standard as part of its physical layer channel coding scheme. Here, a detailed analysis of its pe
Publikováno v:
Procedia Technology. 7:352-359
Like other modern systems a LTE eNodeB has a software layer and a hardware layer. Both these layers shall be connected through a fast application programming interface (API) not to compromise the performance of the whole system. When there is no hard
Autor:
L. G. Pedroso Meloni, Karlo G. Lenzi
Publikováno v:
IEEE Latin America Transactions. 10:1168-1174
This paper concisely presents several common used techniques for measuring the dynamic performance of analog-to-digital conversion. Details about very critical tasks concerning spectral analysis are focused, showing examples to better justify the use
Publikováno v:
IEEE Latin America Transactions. 10:1156-1161
Telecommunications have been in constant evolution during past decades. Among the technological innovations, the use of digital technologies is very relevant. Digital communication systems have proven their efficiency and brought a new element in the
Publikováno v:
2013 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT).
In this paper we design and implement a complex Digital Up-Converter (DUC) using a Xilinx Virtex6 FPGA. All the steps necessary to build such circuits are thoroughly described and some valuable hints on how to overcome problems during the design time
Autor:
Fabbryccio A. C. M. Cardoso, Fabrício Lira Figueiredo, Joao Paulo Miranda, Karlo G. Lenzi, Felipe A. P. de Figueiredo, José A. B. Filho
Publikováno v:
ICSPCS
Random Access is an important aspect of mobile systems where multiple users are always competing for resources. However, noise imposes a significant problem to those systems causing them to falsely detect access requests. In consequence, unnecessary
Publikováno v:
SBAC-PAD
In our previous work, we presented a brief analysis of the performance of the code block segmentation procedure adopted by the 3GPP LTE Advanced Standard as part of its physical layer channel coding scheme. Here, an in-depth analysis of its performan
Publikováno v:
2013 IEEE International Conference on Circuits and Systems (ICCAS).
In this paper we present an optimized rate matching architecture for a LTE-Advanced FPGA-based physical layer. Since LTE-Advanced can reach up to rates of 1 Gbps in downlink, and since rate matching is in that critical path, it is very important that
LTE-Advanced channel coding generic procedures A high-level model to guide low-level implementations
Publikováno v:
WTS
This paper presents a high-level functional model for the 3GPP LTE-Advanced channel coding generic procedures. Due to the complexity of modern wireless communication systems, it is fundamental to have a well-defined high-level model to guide low-leve
Autor:
Andre Luiz Garcia Reis, Luis Geraldo P. Meloni, S.E. Barbin, Andre F. B. Selva, Karlo G. Lenzi
Publikováno v:
WAMICON 2012 IEEE Wireless & Microwave Technology Conference.
In this paper we present a Software Defined Radio (SDR) platform, composed by a USRP hardware and GNU Radio, as a new approach for teaching telecommunications at schools of Electrical Engineering. The proposed approach makes the preparation of an exp