Hybrid ISMA/FDMA protocol for wireless packet transmission
نویسندگان
چکیده
This paper proposes a novel multiple access scheme, which is a combination of Inhibit Sense Multiple Access (ISMA) and Frequency Division Multiple Access (FDMA). Two types of the proposed protocol are considered. They are based on FDD and TDD modes. The performance of each hybrid protocol is evaluated in terms of throughput and the comparison of the proposed schemes and the pure ISMA scheme is discussed. Two examples are constructed to show the main property of the ISMA/FDMA scheme.
منابع مشابه
Decentralized Routing and Power Allocation in FDMA Wireless Networks based on H∞ Fuzzy Control Strategy
Simultaneous routing and resource allocation has been considered in wireless networks for its performance improvement. In this paper we propose a cross-layer optimization framework for worst-case queue length minimization in some type of FDMA based wireless networks, in which the the data routing and the power allocation problem are jointly optimized with Fuzzy distributed H∞ control strategy ....
متن کاملAn Adaptive Congestion Alleviating Protocol for Healthcare Applications in Wireless Body Sensor Networks: Learning Automata Approach
Wireless Body Sensor Networks (WBSNs) involve a convergence of biosensors, wireless communication and networks technologies. WBSN enables real-time healthcare services to users. Wireless sensors can be used to monitor patients’ physical conditions and transfer real time vital signs to the emergency center or individual doctors. Wireless networks are subject to more packet loss and congestion. T...
متن کاملPerformance analysis of a hybrid CDMA/ISMA protocol for indoor wireless computer communications
Abshct A combination of Direct Sequence Code Division Multiple Access (DS-CDMA) and p-persistent Inhibit Sense Multiple Access (ISMA) protocols is proposed for Indoor Wireless Communications (IWC). The combination of these two protocols is called the hybrid CDMA/ISMA protocol. The performance of the hybrid CDMAhSMA protocol is analyzed with a Markov model considering Differential Phase Shift Ke...
متن کاملA Comparison of Isma and Dect-dcs Channel Access Policies for Indoor Wireless Communications Systems
This letter considers two channel allocation schemes for the indoor environment: a mobile-controlled scheme representative of DECT’s Dynamic Channel Selection (DCS), and basestation-controlled inhibit sense multiple access (ISMA). It is shown that the mobile-controlled scheme is subject to inferior performance in packet based voice transmission due to a higher degree of front end clipping which...
متن کاملHMC-MAC Protocol for High Data Rate Wireless Sensor Networks
Using multiple channels in wireless sensor networks helps increase the overall throughput and avoid interferences. In addition, introducing multi-interface nodes further helps in increasing the packet delivery rate for those specific nodes. In this paper, we evaluate a channel allocation method based on neighborhood discovery up to 3 hops and a hybrid MAC protocol designed for high data rate wi...
متن کامل