Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Throughput Analysis of Large Wireless Networks with Regular Topologies | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2007 Article ID 26760 11 pages doi 2007 26760 Research Article Throughput Analysis of Large Wireless Networks with Regular Topologies Kezhu Hong and Yingbo Hua Department of Electrical Engineering University of California Riverside CA 92521 USA Received 2 September 2006 Revised 12 December 2006 Accepted 23 February 2007 Recommended by Weihua Zhuang The throughput of large wireless networks with regular topologies is analyzed under two medium-access control schemes synchronous array method SAM and slotted ALOHA. The regular topologies considered are square hexagon and triangle. Both nonfading channels and Rayleigh fading channels are examined. Furthermore both omnidirectional antennas and directional antennas are considered. Our analysis shows that the SAM leads to a much higher network throughput than the slotted ALOHA. The network throughput in this paper is measured in either bits-hops per second per Hertz per node or bits-meters per second per Hertz per node. The exact connection between the two measures is shown for each topology. With these two fundamental units the network throughput shown in this paper can serve as a reliable benchmark for future works on network throughput of large networks. Copyright 2007 K. Hong and Y. Hua. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. INTRODUCTION The maximum achievable throughput of a large wireless network has been a topic of great interest. A large wireless network can take many possible forms in practice which include large sensor networks large ad hoc networks and large mesh networks. A large mesh network may consist of a large number of wireless transceivers located or approximately located on a regular grid. Such a mesh network may serve as a .
