OFDM/QPSK System Performance with Double Differential Detection in the Presence of Frequency Offset

Izdanje: Naučna konferencija Uniteh 2010

Oblast: Communication Engineering and Technology

Stranice: 282-285

Apstrakt:
In this paper we present the basic characteristics of Orthogonal Frequency Division Multiplex (OFDM) systems with differential quadrature phase shift keying (DQPSK) modulation and OFDM systems with double differential quadrature phase shift keying (DDQPSK) modulation. In the simulation environment designed for this purpose, we analyze the effects of frequency offset on the performance of OFDM digital communications and present the difference between these two systems. We analyze the influence of OFDM system parameters on system’s performance for various values of frequency offset and the number of subcarriers. Comparing OFDM systems with DQPSK and DDQPSK modulation we can conclude that the OFDM system with DDQPSK modulation is the less sensitive to frequency offset but if we want to derive satisfying transfer quality, we need to increase the signal power.
Ključne reči: orthogonal frequency-division multiplexing, differential quadrature phase-shift keying, double differential quadrature phase-shift keying, frequency offset, frequency synchronization
Priložene datoteke:
Kategorije objave: Radovi na konferenciji Unitech 2010, Gabrovo, Bugarska

Preuzimanje citata:

BibTeX format 
@article{article,
  author  = {B. Dimitrijević, S. Stošović, N. Milošević and Z. Nikolić}, 
  title   = {OFDM/QPSK System Performance with Double Differential Detection in the Presence of Frequency Offset},
  journal = {Naučna konferencija Uniteh 2010},
  year    = 2010,
  pages   = {282-285}}
RefWorks Tagged format 
RT Conference Proceedings
A1 Bojan Dimitrijević
A1 Slavimir Stošović
A1 Nenad Milošević
A1 Zorica Nikolić
T1 OFDM/QPSK System Performance with Double Differential Detection in the Presence of Frequency Offset
AD Naučna konferencija Unitech, Gabrovo, Bugarska
YR 2010
Unapred formatirani prikaz citata
B. Dimitrijević, S. Stošović, N. Milošević and Z. Nikolić, OFDM/QPSK System Performance with Double Differential Detection in the Presence of Frequency Offset, Naučna konferencija Unitech, 2010