A two-tier cellular system with a number of small micro-cells overlaid by one large macro-cell is studied. Two channel allocation strategies, Macro-cell-Centered Access Strategy and Micro-cell-Centered Access Strategy, are proposed for the low mobility calls. The system objective is to minimize handover rate with constraint of call blocking and dropping rates (total lost rate) below certain QoS...

The paper aims to examine the determinants of profit performance of financial holding companies (FHCs) using panel data for the period 2001–9. The effects of bankspecific ownership structure and dualcore strategy are examined. Our findings show that (1) business diversification, a lower financial cost, a higher liquidity ratio, larger assets, and lower debt ratios can improve the profit perform...

Holding non-co-located conversations while driving is dangerous (Horrey and Wickens, 2006; Strayer et al., 2006), much more so than conversations with physically present, “situated” interlocutors (Drews et al., 2004). In-car dialogue systems typically resemble non-co-located conversations more, and share their negative impact (Strayer et al., 2013). We implemented and tested a simple strategy f...

Business strategy represents the choice of how to compete for competitive advantage (Porter, 1980, Porter, 1985). And Strategic Information Systems (SIS) shape (Rackoff et al., 1985, Wiseman, 1985) and enable (Bensaou and Venkatraman, 1995) that business strategy. SIS has been the focus of a large body of research and anecdotal descriptions (Chan and Huff, 1992, Porter and Millar, 1985, Wiseman...