| R. Gallager, "A perspective on multiaccess channels," IEEE Trans. Information Theory, vol. IT-31, pp. 124--142, Mar 1985. |
....is referred to as noise error. Multiple access algorithms that handle noise errors were presented in [5] 9] and in [6] In [5] 9] the proposed algorithm is based on the tree collision resolution algorithm (CRA) Ill, 8] while that in [6] is based on Gallager s 0. 487 algorithm [4] [10]. Erasures have been handled in [3] A deterministic capture model in which the nodes of the network are divided into priority groups has been studied in [2] 7] In this paper, we propose and analyze (in Section HI) the performance of tree like algorithms that can handle erasures, captures, ....
R. G. Gallager, "A perspective on multiaccess channels," IEEE Trans. Inform. Theory, vol. IT-31, pp. 124-142, Mar. 1985.
.... is to reduce the power consumption which is directly mapped to reduced electromagnetic radiation, increased battery life, and increased system user capacity [4] To enable multiuser communications in an ad hoc network, an accessing scheme should be adopted to coordinate the operation of the nodes [5]. In this work, we find the optimal number of relay nodes for different multihop non cooperative accessing schemes. The adopted performance measure is the sum transmit power required to achieve reliable communication at a given target transmission rate. Section 2 presents the general system ....
....direct single hop transmission or via multihop transmission using other nodes as relays. For the multihop transmission case, the channel is a multiuser channel with many nodes (source and relays) having data to transmit and so there should be an accessing scheme that coordinates this transmission [5]. With non cooperative accessing, the nodes do not transmit coherent information at the Figure 3: Hop model between nodes 0 . same time intended for a common receiver. Each hop must have a fixed QoS reflected by a required transmission rate ....
R. G. Gallager, "A perspective on multiaccess channels," IEEE Trans. Info. Theory, vol. 31, pp. 124--142, March 1985.
....channel is a convex hull of a union of pentagons. Shortly after that, A.Wyner [9] and T.Cover [10] gave a simplified version of these results for memoryless channels. Another important information theoretic parameter, the error exponents of the multiple access channel was analyzed in [11]. In general, the multiple access capacity region is achievable by using multiple access error control codes. However, in the case of a Gaussian Multiple Access Chan nel (GMAC) it was shown by T.Cover [12] that the vertices of the capacity region can be achieved by using successive single user ....
R. G. Gallager, "A perspective on multiaccess channel," IEEE Trans. on Inform. Theory, pp. 124 142, March 1985.
....state information on centralized or decentralized resource allocation are information theoretic in nature. Information theoretic studies assume that data is always present at each user and this makes the analysis of network throughput, delay and buffer overflow with bursty sources difficult [14], 15] The field of random access protocols is an approach to the multi access problem that explicitly takes into account the burstiness of sources. In this paper, we will consider the use of decentralized channel state information for the design of random access protocols in the MAC layer. As ....
....of random access protocols is an approach to the multi access problem that explicitly takes into account the burstiness of sources. In this paper, we will consider the use of decentralized channel state information for the design of random access protocols in the MAC layer. As has been noted in [14], 15] the field of random access is built upon simplistic models for the physical layer. Random access protocols like traditional ALOHA, splitting algorithms and CSMA have all been developed assuming that the physical layer behaves like a collision channel. To conduct a meaningful study of the ....
R. Gallager, "A Perspective on Multiaccess Channels ," IEEE Trans. Information Theory, vol. IT-31, pp. 124- 142, March 1985.
....received. We will not consider such models in the following, but wish to point out some of these difficulties. First, the amount of exponent required depends on the decoding method. If joint decoding is used, then there are three error exponents, corresponding to the three possible error types [Gal85] and one of the exponents depends on both users transmitted signals. This makes any natural extension of the single user model difficult. If stripping is used instead of joint decoding, then there are only two error exponents one corresponding to each user. However, in this case the amount of ....
R.G. Gallager. A Perspective on Multiaccess Channels. IEEE Trans. Inf. Th., IT-31(2):124--142, Mar 1985.
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R. Gallager, "A perspective on multiaccess channels," IEEE Trans. Information Theory, vol. IT-31, pp. 124--142, Mar 1985.
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R. Gallager. A perspective on multiaccess channels. IEEE Trans. Information Theory, IT-31:124--142, Mar 1985.
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R. Gallager, A perspective on multiaccess channels, IEEE Trans. on Information Theory 31 (1985) 124--142.
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R. Gallager, A Perspective on Multiaccess Channels, IEEE Trans. on Information Theory 31 (1985), 124142.
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R. Gallager, "A perspective on multiaccess channels," IEEE Trans. Inform. Theory, vol. 27, no. 3, pp. 124--142, Mar. 1982.
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R. Gallager, "A perspective on multiaccess channels," IEEE Trans. Inform. Theory, vol. 27, no. 3, pp. 124--142, Mar. 1985.
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R. Gallager, "A perspective on multiaccess channels," IEEE Trans. on Information Theory, vol. 27, no. 3, pp. 124--142, Mar. 1982.
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R. Gallager, A perspective on multiaccess channels, IEEE Trans. on Information Theory 31 (1985) 124-142.
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R. G. Gallager, "A perspective on multiaccess channels," IEEE Trans. Inform. Theory, vol. IT-31, pp. 124--142, 1985.
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R. Gallager, "A perspective on multiaccess channels," IEEE Transactions on Information Theory, vol. 31, 1985.
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R. Gallager, "A perspective on multiaccess channels," IEEE Trans. Information Theory, vol. IT-31, pp. 124--142, Mar 1985.
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R.G. Gallager, A perspective on multiaccess channels, IEEE Trans. on Information Theory, 31 (1985) 124 - 142.
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R. G. Gallager, "A Perspective on Multiaccess Channels", IEEE Transactions on Information Theory, Vol. 31(2), March, 1985.
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R. G. Gallager, "A Perspective on Multiaccess Channels," IEEE Trans. Info. Theo., vol. IT-31, no. 2, pp. 124-142, Mar. 1985.
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R. Gallager, "A Perspective on Multiaccess Channels," IEEE Trans. Information Theory, vol. IT31, pp. 124--142, March 1985.
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Gallager, R.G.: A perspective on multiaccess channels. IEEE Trans. on Information Theory IT-31 (1985) 124--142
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R. G. Gallager, "A perspective on multiaccess channels," IEEE Trans. Inform. Theory, vol. IT-31, pp. 124--142, Mar. 1985.
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R. G. Gallager, "A perspective on multiaccess channels," IEEE Tran. Information Theory, vol. 31, pp. 124-142, Mar. 1985.
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Robert G. Gallager, "A perspective on multiaccess channels," IEEE Transactions on Information Theory, vol. 31, no. 2, pp. 124--142, Mar. 1985.
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R.G. Gallager, "A perspective of multiaccess channels," IEEE Trans. Inform. Theory, Vol. IT-31, pp. 124-142, 1985.
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