Aviat Networks highlights the importance of microwave solutions for LTE wireless networks, especially in addressing the backhaul bottleneck due to growing mobile internet demands. As operators transition from copper and fiber to more efficient microwave technologies, they can achieve greater connectivity and cost efficiency, particularly in areas where fiber installation is economically infeasible. The document emphasizes that there is no 'one size fits all' solution for backhaul, and microwave can complement fiber in providing effective network migration for next-generation 4G/LTE services.

1. Microwave Solutions for LTE Wireless NetworksPresented By: Stuart Little, Director of Global Corporate Marketing, AviatNetworks Taking the ‘haul’ out of backhaul

2. The Mobile Internet Tsunami meets the Backhaul BottleneckBackhaul is the central battleground for LTE network migrationEven now backhaul is not meeting the demand of 3G/HSPALTE backhaul requirements are still not well understood by operators*2MARCH 23, 2010AVIAT NETWORKS |* Source: Heavy Reading, 4th Annual Multi-Client Study On Mobile Backhaul, December 2009

3. Hybrid fiber/microwave backhaulNearly 1 million new sites worldwide by 2013Fiber is the natural choice for LTE backhaul, but connects less than 20% of NA sites todayCopper lines will not provide the capacity scalability neededMicrowave is the natural choice for sites where fiber cannot reach economically3Source: Ovum, Wireless Backhaul Forecast 2009-2015, November, 2009MARCH 23, 2010AVIAT NETWORKS |

4. An Opportunity for Fiber WholesalersMajority of cellsite connections today using leased copper

5. These connections will migrate to leased Ethernet Private Lines over fiber

6. Both Verizon and AT&T are targeting 90% penetration in the next 2 to 5 years

7. Wholesalers and MSOs are ideally positioned for this opportunity

8. Microwave economics work for aerial fiber runs beyond 1 ¾ miles.

9. Microwave can play a key role, but wholesalers generally lack microwave expertise4MARCH 23, 2010AVIAT NETWORKS |

10. Mobile Network Evolution, not RevolutionMobile backhaul networks must evolveMaintain essential high-quality TDM voice servicesGradual migration path to all-IP for next generation 4G/LTEThere’s no silver bullet or one size fits all5TransitionMaintainTransformMARCH 23, 2010AVIAT NETWORKS |

11. 4th Generation Microwave for 4G BackhaulMulti-gigabit aggregate IP capacityEfficient nodal architecture reduces cost, spaceIntegrated Layer 2 Ethernet switchingHybrid support for both TDM and Ethernet/IP trafficUltra bandwidth efficiencyCompact, power efficient6MARCH 23, 2010AVIAT NETWORKS |

12. Global Microwave MarketMicrowave market worth $4-6 billion/yr>75% is mobile backhaul>1 million units/yr globallyNearly 50% of the world’s base stations are connected by microwaveGlobal Cell Site Connectivity (2009)Microwave 48 %Copper 15 %Fibre 37 %Source: Heavy Reading’s Ethernet Backhaul Quarterly Tracker ServiceMARCH 23, 20107AVIAT NETWORKS |