ADAPTIVE CYCLIC PREFIX LENGTH FOR CONVOLUITIONAL CODE OFDM SYSTEM IN FREQUENCY SELECTIVE CHANNEL
نویسندگان
چکیده
Orthogonal Frequency Division Multiplexing (OFDM) is one of recent years multicarrier modulation used in order to combat the Inter Symbol Interference (ISI) introduced by frequency selective mobile radio channel. The circular extension data symbol, commonly referred as cyclic prefix key elements an OFDM transmission scheme. This paper study influence duration on BER performance OFDM-VCPL (Orthogonal division multiplexing - Variable Cyclic Prefix Length) system and conventional with frame 64-QAM evaluated means computer simulation a multipath fading adaptation CP done respect delay spread estimation
منابع مشابه
A novel OFDM transmission scheme with length-adaptive Cyclic Prefix.
Conventional OFDM transmission system uses a fixed-length Cyclic Prefix to counteract Inter-Symbol Interferences (ISI) caused by channel delay spreading under wireless mobile environment. This may cause considerable performance deterioration when the CP length is less than the channel RMS delay spread, or may decrease the system power and spectrum efficiency when it is much larger. A novel OFDM...
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ژورنال
عنوان ژورنال: Ma?allat? al-handasat?
سال: 2023
ISSN: ['1726-4073', '2520-3339']
DOI: https://doi.org/10.31026/j.eng.2012.01.04