A new contention-based multiaccess protocol, named status sense multiple access (SaMA), is introduced. SaMA is synchronous TDMA in its framing but it possesses many features of random access. The approach of SaMA is geared towards integrating heterogeneous classes of customers over a common broadcast channel. However, in this paper, the performance of this protocol with two classes of customers, such as voice and data, has been analyzed. Unlike fixed and some moveable-boundary approach of integrating voice and data, here no slot is wasted, except for possible collision, as long as there is a demand for the slot from either of the two classes. Therefore, the channel utilization efficiency can be very high. I. INTRODUCTION N multiple-access communication environment it is often I required that more than one class of customers communi- cate over a common two way broadcast type channel. Here, we introduce a new contention-based multiple access proto- col, named status sense multiple access (S2MA), which is designed to accommodate heterogeneous classes of customers on a common broadcast channel. In this paper, however, we analyze the performance of the protocol with only two classes of customers such as voice and data. In order to integrate the two classes of services while still al- lowing an efficient channel utilization and the simple protocols afforded by random access, some compromises must be made. In a straight CSMA/CD (l) scheme, for example, where there
['Rashid Al-Naami', 'Debabrata Saha']
Status Sense Multiple-Access (S'MA) Communication