Dual Channel Transmission for Coexistence of Wireless Networks

With the upcoming pervasive deployment of wireless networks and devices on the unlicensed band, co-channel interference caused by frequency collisions among coexisting networks have become one of the major performance limiting challenges. In recent years the coexistence issue has gained increasing attention. However, many collision avoidance schemes are not applicable to multiple frequency hopped (FH) networks, mainly due to that the frequency channels of FH signals are constantly changing and the hop sequence of one network is unknown to another. In this project, we develop a dual channel transmission technique for co-channel interference mitigation and robust coexistence of multiple wireless networks. This report describes the system modeling, design, theoretic analysis, simulation, and testbed implementation involved in the aforementioned framework. (a) Papers published in peer-reviewed journals (N/A for none) 1. J. Li, X. Liu, and A. Swami, "Collision analysis for coexistence of multiple Bluetooth piconets and WLAN with dual channel transmission," IEEE Trans. Communications, accepted, Jun. 2007. 2. J. Liu, X. Liu, and X. Ma, "First-order perturbation analysis of singular vectors in singular value decomposition," IEEE Trans. Signal Processing, to appear, 2008. List of papers submitted or published that acknowledge ARO support during this reporting period. List the papers, including journal references, in the following categories: (b) Papers published in non-peer-reviewed journals or in conference proceedings (N/A for none) 2.00 Number of Papers published in peer-reviewed journals: Number of Papers published in non peer-reviewed journals: (c) Presentations 0.00 Number of Presentations: 0.00 Non Peer-Reviewed Conference Proceeding publications (other than abstracts): Number of Non Peer-Reviewed Conference Proceeding publications (other than abstracts): 0 Peer-Reviewed Conference Proceeding publications (other than abstracts): 1. J. Li and X. Liu, "A frequency diversity technique for interference mitigation in coexisting Bluetooth and WLAN," Proc. International Conference on Communications (ICC), pp. 5490--5495, Glasgow, Scotland, Jun. 24-28, 2007. 2. J. Li and X. Liu, "Evaluation of co-channel and adjacent channel interference for multiple Bluetooth piconets with dual channel transmission," Proc. IEEE Wireless Communications and Networking Conference (WCNC), pp. 2357--2362, Hong Kong, Mar. 11-15, 2007. 3. J. Li, X. Liu, and X. Ma, "Dual channel transmission for coexistence of Bluetooth piconets with multi-slot packets," Proc. International Symposium on Wireless Pervasive Computing (ISWPC), pp. 389--394, San Juan, Puerto Rico, Feb. 5-7, 2007. 4. J. Li and X. Liu, "A collision resolution technique for robust coexistence of multiple Bluetooth piconets," Proc. the 64th IEEE Vehicular Technology Conference (VTC), Sep. 25-28, 2006. 1. J. Li and X. Liu, "A single-antenna multi-carrier diversity technique for frequency selective fading channels," International Journal of Communication Systems, submitted, Jul. 2007. (d) Manuscripts Number of Peer-Reviewed Conference Proceeding publications (other than abstracts): 4 Number of Manuscripts: 1.00 Number of Inventions: