Syed Aon Mujtaba

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– The purpose of the cell search algorithm in UMTS is to estimate the spreading code of the serving base-station and its corresponding timing offset. The search procedure consists of 3 sequential and distinct stages: (1) slot-boundary synchronization, (2) frame-boundary synchronization with code-group identification, and (3) scrambling code identification.(More)
—In this paper, we propose a simple reduced-complexity decoding technique called bypass decoding for low-density parity-check (LDPC)-coded multiple-input–multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems. Employing the bypass decoding technique, the receiver of an LDPC-coded MIMO-OFDM system decodes a codeword in two steps(More)
Polyphase FilterBanks (PFBs) provide a computationally efficient approach to extracting channels of arbitrary bandwidth from a wideband signal. This technique, know as digital downconversion, would find use in software radio applications. Conversely, PFBs can also be used to perform digital upconversion, a process in which a wide-band signal is constructed(More)
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