Chatzigeorgiou, Ioannis (2013) Bounds on the Lambert function and their application to the outage analysis of user cooperation. IEEE Communications Letters, 17 (8). pp. 1505-1508. ISSN 1089-7798
Full text not available from this repository.Abstract
Problems formulated in terms of logarithmic or exponential equations often use the Lambert W function in their solutions. Expansions, approximations and bounds on W have been derived in an effort to gain a better understanding of the relationship between equation parameters. In this paper, we focus on one of the branches of W, denoted as W_{-1}, we derive tractable upper and lower bounds and we illustrate their usefulness in identifying conditions under which user cooperation can yield a lower outage probability than non-cooperative transmission.