Title | Transmission and Reception Concepts for WLAN IEEE 802.11b |
Publication Type | Journal Article |
Year of Publication | 2006 |
Authors | Jonietz, C., W. H. Gerstacker, and R. Schober |
Journal | Wireless Communications, IEEE Transactions on |
Volume | 5 |
Pagination | 3375 -3381 |
Date Published | dec. |
ISSN | 1536-1276 |
Abstract | State-of-the-art wireless local area network (WLAN) IEEE 802.11b terminals employ complementary code keying (CCK) as modulation format. In this paper, receiver concepts tailored for CCK transmission over frequency-selective fading channels are presented in a unified and systematic framework. First, optimum maximum-likelihood (ML) detection for CCK signaling is considered. Second, for complexity reduction, minimum mean-squared error block decision-feedback equalization (MMSE-DFE) is investigated and reduced-state sequence estimation (RSSE) is considered on the basis of an Ungerbock-like set partitioning of the multidimensional CCK code wordset. In order to improve the reliability of CCK transmission over fading channels, time-reversal space-time block codes (TR-STBCs) combined with receive diversity are applied. Simulation results of the considered suboptimum receivers are compared with a performance approximation for optimum detection. Our results demonstrate the excellent performance of the advocated equalization schemes and the significant gains that can be achieved with TR-STBCs and receive diversity in typical WLAN environments |
URL | http://dx.doi.org/10.1109/TWC.2006.256959 |
DOI | 10.1109/TWC.2006.256959 |