| KS OmniScriptum Publishing

115,200원  | 20121215  | 9783843354288

OFDM has been an attractive choice for digital modulation in the recent years due to its robustness to channel fading and invulnerability to intersymbol interference. However, to achieve an optimal performance the corresponding channel estimation scheme need to be accurate. This book focuses on the use of guard intervals between successive OFDM symbols for channel estimation.

 | KS OmniScriptum Publishing

86,400원  | 20130609  | 9783659381843

In today's scenario there is need to transmit the information through wireless medium, quickly and accurately.Orthogonal Frequency Division Multiplexing (OFDM), because of its resistance to multipath fading, has attracted increasing interest in recent years as a suitable modulation scheme for commercial high-speed broadband wireless communication systems.There are different parameters which alters the performance of OFDM system.

 | Morgan & Claypool

90,000원  | 20120730  | 9781608458295

The demand for data traffic over mobile communication networks has substantially increased during the last decade. As a result, these mobile broadband devices spend the available spectrum fiercely, requiring the search for new technologies. In transmissions where the channel presents a frequency-selective behavior, multicarrier modulation (MCM) schemes have proven to be more efficient, in terms of spectral usage, than conventional modulations and spread spectrum techniques.

 | KS OmniScriptum Publishing

75,600원  | 20250708  | 9786208855598

W niniejszej ksi??ce przeanalizowano system ortogonalnego multipleksowania cz?stotliwo?ciowego (OFDM) oraz wpływ kodowania kanałowego na zmniejszenie BER. Wyja?niono rownie? kwesti? dekodowania mi?kkiego i dekodowania z wykorzystaniem CSI. Ponadto porownano wydajno?? kodow splotowych i kodow Turbo w systemach ortogonalnego multipleksowania cz?stotliwo?ciowego. Ponadto porownujemy wydajno?? kodow splotowych i turbo w systemach ortogonalnego multipleksowania cz?stotliwo?ci.

 | KS OmniScriptum Publishing

75,600원  | 20250708  | 9786208855604

Dieses Buch analysiert das Orthogonal Frequency Division Multiplexing-System und den Einfluss der Kanalcodierung auf die Reduzierung der BER. Dabei werden auch die Soft-Decodierung und die Decodierung mit CSI erlautert. Außerdem wird die Leistung von Faltungscodes und Turbo-Codes in Orthogonal Frequency Division Multiplexing-Systemen verglichen. Außerdem vergleichen wir die Leistung von Faltungs- und Turbo-Codes in orthogonalen Frequenzmultiplexsystemen.

김진영, 서철헌  | 공감북스

21,160원  | 20170125  | 9791186898208

▶ 이 책은 OFDM 통신방식을 다룬 이론서입니다. OFDM 통신방식의 기초적이고 전반적인 내용을 학습할 수 있도록 구성했습니다.

 | LAP Lambert Academic Publishing

86,400원  | 20241011  | 9786208222765

Design and Performance of MIMO-OFDM Systems Using VBLAST-ZF and VBLAST-MMSE Techniques" explores the implementation of Multiple Input Multiple Output (MIMO) systems integrated with Orthogonal Frequency Division Multiplexing (OFDM) technology. MIMO-OFDM is a key component of modern wireless communication standards due to its ability to increase capacity and spectrum efficiency in multi-path environments.

 | KS OmniScriptum Publishing

75,600원  | 20250708  | 9786208855642

Este livro analisa o sistema de multiplexacao por divisao ortogonal de frequencia e a influencia da codificacao de canal na reducao da BER. Juntamente com isso, tambem e explicada a descodificacao suave e a descodificacao com CSI. Alem disso, e comparado o desempenho dos codigos convolucionais Turbo em sistemas de multiplexacao por divisao ortogonal de frequencia.

 | KS OmniScriptum Publishing

75,600원  | 20250708  | 9786208855611

Cet ouvrage analyse le systeme de multiplexage par repartition orthogonale de la frequence (OFDM) et l'influence du codage de canal sur la reduction du taux d'erreur binaire (BER). Il explique egalement le decodage logiciel et le decodage avec CSI. En outre, il compare les performances des codes convolutifs et des codes Turbo dans les systemes OFDM.

 | LAP Lambert Academic Publishing

79,200원  | 20200116  | 9786200535757

We expand our recently introduced concept of unique word orthogonal frequency division multiplexing (UW-OFDM). In UW-OFDM the cyclic prefixes (CPs) are replaced by deterministic sequences, the so-called unique words (UWs). The UWs are generated by appropriately loading a set of redundant subcarriers.

 | KS OmniScriptum Publishing

117,000원  | 20130216  | 9783659347764

This book intends to give a coherent and comprehensive introduction to the fundamentals of OFDM signal processing and coding,with a distinctive focus on its broad range of applications.

 | KS OmniScriptum Publishing

75,600원  | 20250708  | 9786208855635

Questo libro analizza il sistema di multiplexing a divisione di frequenza ortogonale (OFDM) e l'influenza della codifica di canale nella riduzione del tasso di errore binario (BER). Vengono inoltre spiegati la decodifica soft e la decodifica con CSI. Inoltre, viene confrontata la performance dei codici convoluzionali e dei codici Turbo nei sistemi OFDM.

Hanzo, L./ Keller, T.  | Wiley

0원  | 20210101  | 9780470030073

Wireless communications has witnessed a tremendous growth during the past decade and further spectacular enabling technology advances are expected in an effort to render ubiquitous wireless connectivity a reality. Currently, a technical in-depth book on this subject is unavailable, which has a similar detailed exposure of OFDM, MIMO-OFDM and MC-CDMA. A further attraction of the joint treatment of these topics is that it allows the reader to view their design trade-offs in a comparative context. Divided into three main parts: Part I provides a detailed exposure of OFDM designed for employment in various applications Part II is another design alternative applicable in the context of OFDM systems where the channel quality fluctuations observed are averaged out with the aid of frequency-domain spreading codes, which leads to the concept of MC-CDMA Part III discusses how to employ multiple antennas at the base station for the sake of supporting multiple users in the uplink By providing an all-encompassing self-contained treatment this volume will appeal to a wide readership, as it is both an easy-reading textbook and a high-level research monograph.

 | KS OmniScriptum Publishing

117,000원  | 20130508  | 9783659393617

This work addresses theoretically some issues related to CO-OFDM system and identifies some parameters that affect its performance. The performance of a long-haul CO-OFDM system is simulated taking into account the effect of fiber chromatic dispersion, polarization mode dispersion, and nonlinear fiber optic effects. A theoretical study regarding the relation between the number of subcarriers and the mean launched optical power is carried out and supported by simulation results.

 | KS OmniScriptum Publishing

70,200원  | 20250330  | 9786208804497

Niniejsza ksi??ka przedstawia badanie technik redukcji PAPR w ortogonalnym multipleksowaniu z podziałem cz?stotliwo?ci (OFDM). Obecnie OFDM stał si? jednym z głownych no?nikow wysokiej szybko?ci transmisji danych w obecnych i rozwijaj?cych si? technologiach bezprzewodowych, takich jak 3G, 4G, LTE, LTE+, IEEE 802.11 (WLAN), Wi-Fi, Wi-Max itp. Niniejsza praca stanowi kompleksowe odniesienie do obecnego scenariusza w obszarach badawczych obecnego ?rodowiska komunikacyjnego.