The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this brief, we propose a lattice-reduction (LR) processor for the LR-aided multiple-input-multiple-output detection. The proposed LR processor was developed based on a modified Lenstra-Lenstra-Lovász (LLL) algorithm. We developed a constant-throughput parallel architecture to realize the real-time operation for the LR. The proposed architecture can detect many redundant operations by...
In recent years, lattice-reduction-aided (LRA) MIMO detection attracts much research attention because it can effectively improve MIMO detection performance. However, it causes performance degradation in the low- and mid-SNR channel especially in the high-dimensional MIMO system. Therefore, we propose a multi-stage lattice-reduction-aided (MS-LRA) MIMO detection scheme in this letter. The proposed...
Due to the growing demand of transmission capacity of the wireless communication system, multiple-input multiple-output orthogonal-frequency-division-multiplexing (MIMO-OFDM) communication system requires more and more MIMO antennas and a large number of OFDM subcarriers. Thus, the QR decomposition becomes one of the computational bottlenecks in the QR-based MIMO detection. The proposed Givens-Rotation-based...
In this paper, we propose a VLSI design of a 4 × 4 MIMO-OFDMA down-link baseband receiver for the mobile communications. The receiver consists of synchronization, channel estimation/compensation, precode codebook search, and MIMO detection. To realize the closed-loop MIMO system in the mobile environment, we utilize the MMSE-OSIC algorithm for MIMO detector and capacity selection criterion for precode...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.