Abstract
Multicell cooperation has been identified as one of the underlying principles for future wireless communication systems. This paper studies the benefits of multicell cooperation in broadcast TV network from an information theoretical perspective. We define outage capacity as the figure of merit and derive the broadcast coverage area to evaluate such system. Specifically, we calculate the broadcast coverage area with given common information rate and outage probabilities when multiple base stations collaboratively transmit the broadcast signals. For the general MIMO case where receivers have multiple antennas, we provide simulation results to illustrate the expanded coverage area. In all cases, our results show that the coverage of a TV broadcast network can be significantly improved by multicell cooperation.
Highlights
The wireless industry is experiencing an unprecedented increase in demand for better multimedia broadcasting systems
We are not limited to a particular broadcast network or technique, rather, we study the broadcast coverage from an information theory point of view
We studied the performance of multicell cooperation in broadcast network
Summary
The wireless industry is experiencing an unprecedented increase in demand for better multimedia broadcasting systems. Most of the studies on cooperative transmission so far focus on reducing intercell interference and increasing system capacity in two-way (uplink/downlike) cellular systems, where cooperation can be employed at either the base station (BS) or mobile station (MS). Assume all the BSs in the network are connected to a central processor via links of unlimited capacity, the set of BSs effectively acts as a geographically distributed multiantenna system Under this perfect MCC assumption, [5] investigated multicell downlink channel capacity with single-class network where the users are clustered at the cell edges. We consider full MCC in broadcast network with cooperation among some small number of neighboring base stations. We quantify the extended coverage areas under different MCC scenarios and derive the coverage gains over single-cell independent transmission. B: the total channel bandwidth ro: common information broadcast rate qo: outage Probability N0: white noise variance (10−9 w/Hz)
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