IEEE Communications Magazine
An efficient receiver for preamble detection in LTE SC-FDMA systems with an antenna array
IEEE Communications Letters
ML estimation of time and frequency offset in OFDM systems
IEEE Transactions on Signal Processing
An efficient random access scheme for OFDMA systems with implicit message transmission
IEEE Transactions on Wireless Communications
Polyphase codes with good periodic correlation properties (Corresp.)
IEEE Transactions on Information Theory
Low complexity cell search scheme for LTE and LTE-advanced mobile technologies
Computers and Electrical Engineering
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In this paper, the problem of preamble detection associated with random access procedure in 3GPP long term evolution (LTE) technology is tackled. Different detection strategies are proposed, both in time and frequency domain, in order to evaluate their performance in terms of missed detection probability (MDP) and hardware complexity. Results show that time-domain detectors are shown to be a valid alternative for preamble detection, since they fulfill the MDP requirements defined in 3GPP-LTE specification. Frequency-domain processing architectures achieve a better performance in terms of MDP, but at the expense of a greater complexity. Implementation requirements can be alleviated by reducing the number of quantization bits for the correlation operations, even up to 1-bit, while barely affecting the performance detection.