Title :
Downlink channel assignment algorithms for packet-based wireless TDMA/FDMA networks
Author :
Tsuchiya, W. ; Morikawa, H.
Author_Institution :
Dept. of Electr. Eng., Tokyo Univ., Japan
Abstract :
Uplink/downlink independent radio resource management is one solution for emerging multimedia wireless networks. This paper presents six downlink channel assignment algorithms for packet-based TDMA/FDMA systems. The goal is to minimize the channel setup delay while attaining high transmission quality. Computer simulations are used to evaluate system performance in terms of dropped packet ratio and average channel setup delay. Only the bursty voice traffic is considered for real-time transmission. Priority-based two-stage algorithms are found to provide good performance, where the first stage is the selection of carrier to be scanned, and the second stage is the selection of time-slot to be assigned. The effect of priority determination algorithms is also discussed
Keywords :
cellular radio; cochannel interference; frequency allocation; frequency division multiple access; land mobile radio; multimedia communication; packet radio networks; radio spectrum management; telecommunication traffic; time division multiple access; TDMA/FDMA networks; bursty voice traffic; channel setup delay; computer simulations; downlink channel assignment algorithms; dropped packet ratio; high transmission quality; microcellular architecture; multimedia wireless networks; packet-based wireless networks; performance evaluation; priority determination algorithms; priority-based two-stage algorithms; radio resource management; Access protocols; Databases; Delay; Downlink; Electronic mail; Frequency division multiaccess; Media Access Protocol; Resource management; Time division multiple access; Wireless networks;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1996. PIMRC'96., Seventh IEEE International Symposium on
Conference_Location :
Taipei
Print_ISBN :
0-7803-3692-5
DOI :
10.1109/PIMRC.1996.568474
