The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Dengan transmisi berbilang pengguna serentak, akses berbilang bahagian spatial (SDMA) memberikan keuntungan pemprosesan yang besar berbanding penghantaran pengguna tunggal. Walau bagaimanapun, pelaksanaannya dalam WLAN dengan IEEE 802.11 MAC berasaskan perbalahan kekal mencabar. Masalah seperti menyelaras dan menyegerakkan berbilang pengguna perlu diselesaikan dengan cara yang diedarkan. Dalam kertas ini, kami mencadangkan protokol MAC yang diedarkan untuk WLAN dengan sokongan SDMA. Mekanisme tindak balas CTS dwi-mod direka untuk mencapai anggaran saluran dan penyegerakan pengguna yang diperlukan untuk SDMA. Kami mengkaji secara analitik prestasi pemprosesan MAC yang dicadangkan, dan pelarasan parameter dinamik direka untuk meningkatkan kecekapan protokol. Di samping itu, protokol MAC yang dicadangkan tidak bergantung pada realisasi lapisan fizikal tertentu, dan boleh berfungsi pada peralatan IEEE 802.11 warisan dengan sedikit kemas kini perisian. Keputusan simulasi menunjukkan bahawa MAC yang dicadangkan mengatasi IEEE 802.11 dengan ketara, dan pelarasan parameter dinamik boleh mengesan variasi beban dalam rangkaian dengan berkesan.
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Salinan
Sheng ZHOU, Zhisheng NIU, "Distributed Medium Access Control with SDMA Support for WLANs" in IEICE TRANSACTIONS on Communications,
vol. E93-B, no. 4, pp. 961-970, April 2010, doi: 10.1587/transcom.E93.B.961.
Abstract: With simultaneous multi-user transmissions, spatial division multiple access (SDMA) provides substantial throughput gain over the single user transmission. However, its implementation in WLANs with contention-based IEEE 802.11 MAC remains challenging. Problems such as coordinating and synchronizing the multiple users need to be solved in a distributed way. In this paper, we propose a distributed MAC protocol for WLANs with SDMA support. A dual-mode CTS responding mechanism is designed to accomplish the channel estimation and user synchronization required for SDMA. We analytically study the throughput performance of the proposed MAC, and dynamic parameter adjustment is designed to enhance the protocol efficiency. In addition, the proposed MAC protocol does not rely on specific physical layer realizations, and can work on legacy IEEE 802.11 equipment with slight software updates. Simulation results show that the proposed MAC outperforms IEEE 802.11 significantly, and that the dynamic parameter adjustment can effectively track the load variation in the network.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.961/_p
Salinan
@ARTICLE{e93-b_4_961,
author={Sheng ZHOU, Zhisheng NIU, },
journal={IEICE TRANSACTIONS on Communications},
title={Distributed Medium Access Control with SDMA Support for WLANs},
year={2010},
volume={E93-B},
number={4},
pages={961-970},
abstract={With simultaneous multi-user transmissions, spatial division multiple access (SDMA) provides substantial throughput gain over the single user transmission. However, its implementation in WLANs with contention-based IEEE 802.11 MAC remains challenging. Problems such as coordinating and synchronizing the multiple users need to be solved in a distributed way. In this paper, we propose a distributed MAC protocol for WLANs with SDMA support. A dual-mode CTS responding mechanism is designed to accomplish the channel estimation and user synchronization required for SDMA. We analytically study the throughput performance of the proposed MAC, and dynamic parameter adjustment is designed to enhance the protocol efficiency. In addition, the proposed MAC protocol does not rely on specific physical layer realizations, and can work on legacy IEEE 802.11 equipment with slight software updates. Simulation results show that the proposed MAC outperforms IEEE 802.11 significantly, and that the dynamic parameter adjustment can effectively track the load variation in the network.},
keywords={},
doi={10.1587/transcom.E93.B.961},
ISSN={1745-1345},
month={April},}
Salinan
TY - JOUR
TI - Distributed Medium Access Control with SDMA Support for WLANs
T2 - IEICE TRANSACTIONS on Communications
SP - 961
EP - 970
AU - Sheng ZHOU
AU - Zhisheng NIU
PY - 2010
DO - 10.1587/transcom.E93.B.961
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 4
JA - IEICE TRANSACTIONS on Communications
Y1 - April 2010
AB - With simultaneous multi-user transmissions, spatial division multiple access (SDMA) provides substantial throughput gain over the single user transmission. However, its implementation in WLANs with contention-based IEEE 802.11 MAC remains challenging. Problems such as coordinating and synchronizing the multiple users need to be solved in a distributed way. In this paper, we propose a distributed MAC protocol for WLANs with SDMA support. A dual-mode CTS responding mechanism is designed to accomplish the channel estimation and user synchronization required for SDMA. We analytically study the throughput performance of the proposed MAC, and dynamic parameter adjustment is designed to enhance the protocol efficiency. In addition, the proposed MAC protocol does not rely on specific physical layer realizations, and can work on legacy IEEE 802.11 equipment with slight software updates. Simulation results show that the proposed MAC outperforms IEEE 802.11 significantly, and that the dynamic parameter adjustment can effectively track the load variation in the network.
ER -