Cross-layer interaction and service mapping

CLIASM known as Cross Layer Interaction and Service Mapping which was designed for achieving QoS for Wireless Networks. P. Venkata Krishna et al., proposed a cross layer QoS model called CLIASM for MANET [6]. This model proposes a back and forth flow mechanism for sharing information. A Shared database is being utilized to enable layers share information though each layer is performing different function. Between two layers two interfaces are created to enable flow of information on both sides. The model is implemented based on the division of network features according to layers as Application Layer Metrics (ALM), Transport Layer Metrics (TLM), Network Layer Metrics (NLM) and MAC Layer Metrics (MLM). But in deploying several cross-layering approaches, one has to keep in mind the possibilities of occurrence of unintended interactions and side effects. Conflicting interactions may create stability problems and result performance degradation.

References:
1. P. Venkata Krishna and S. N. Iyengar “A cross layer based QoS model for wireless and Mobile Adhoc Networks” Networks Journal Of Mobile Communication, Vol. 1(4), pp. 114–120, 2007.
2. P.Venkata Krishna, N.Ch.S.N.Iyengar and Sudip Misra, "An Efficient Hash Table Node Identification Method For Bandwidth Reservation In Hybrid Cellular And Ad Hock " Computer Communications (Elsevier) 31, No. 4,722-733, March 2008.
3. RL Priya, A Study on QoS Issues for Mobile Ad-hoc Networks